{"id":13681,"date":"2025-10-04T08:10:09","date_gmt":"2025-10-04T07:10:09","guid":{"rendered":"https:\/\/mcqsadda.com\/?p=13681"},"modified":"2025-10-22T09:08:21","modified_gmt":"2025-10-22T08:08:21","slug":"soil-top-100-mcqs-with-answer-and-explanation-2","status":"publish","type":"post","link":"https:\/\/mcqsadda.com\/index.php\/2025\/10\/04\/soil-top-100-mcqs-with-answer-and-explanation-2\/","title":{"rendered":"Soil Top 100 MCQs With Answer and Explanation"},"content":{"rendered":"\n

1. The total geographical area of Karnataka is approximately \u2014<\/mark><\/strong>
A) 1.85 lakh sq km
B) 1.91 lakh sq km
C) 2.05 lakh sq km
D) 1.70 lakh sq km
\u00a0Answer:<\/strong> B) 1.91 lakh sq km
Explanation:<\/strong> Karnataka covers 1,91,791 sq km<\/strong>, accounting for 5.8% of India\u2019s total area<\/strong>.<\/p>\n\n\n\n

2. The soils of Karnataka are broadly classified into how many major types?
<\/mark><\/strong>A) 3
B) 4
C) 5
D) 6
\u00a0Answer:<\/strong> C) 5
Explanation:<\/strong> Karnataka has five major soil types<\/strong> \u2014 Red, Black, Laterite, Alluvial, and Mixed\/Other soils.<\/p>\n\n\n\n

3. The classification of soils in Karnataka is based primarily on \u2014
<\/mark><\/strong>A) Rainfall and temperature
B) Parent rock and climatic conditions
C) River drainage pattern
D) Vegetation type
\u00a0Answer:<\/strong> B) Parent rock and climatic conditions
Explanation:<\/strong> Soils are formed by the weathering of parent rocks<\/strong> under specific climatic and biological factors<\/strong>.<\/p>\n\n\n\n

4. The term \u201cpedology\u201d refers to \u2014
<\/mark><\/strong>A) Study of rocks
B) Study of climate
C) Study of soils
D) Study of rivers
\u00a0Answer:<\/strong> C) Study of soils
Explanation:<\/strong> Pedology<\/strong> is the scientific study of soils<\/strong>, their formation, and characteristics.<\/p>\n\n\n\n

5. The parent rocks responsible for soil formation in Karnataka are mainly \u2014
<\/mark><\/strong>A) Igneous and metamorphic rocks
B) Sedimentary rocks only
C) Limestone and sandstone
D) Granite and basalt
\u00a0Answer:<\/strong> D) Granite and basalt
Explanation:<\/strong> Most of Karnataka\u2019s soils originate from granitic and basaltic rocks<\/strong> of the Deccan plateau<\/strong>.<\/p>\n\n\n\n

6. The dominant process of soil formation in Karnataka is \u2014
<\/mark><\/strong>A) Leaching and laterization
B) Glaciation
C) Deposition
D) Tectonic uplift
\u00a0Answer:<\/strong> A) Leaching and laterization
Explanation:<\/strong> Due to heavy rainfall in Western Ghats<\/strong> and weathering in dry zones<\/strong>, leaching and laterization<\/strong> are common soil-forming processes.<\/p>\n\n\n\n

7. The most widely spread soil in Karnataka is \u2014<\/mark><\/strong>
A) Black soil
B) Red soil
C) Alluvial soil
D) Laterite soil
\u00a0Answer:<\/strong> B) Red soil
Explanation:<\/strong> Red soils<\/strong> cover nearly two-thirds of Karnataka<\/strong>, especially the southern and eastern maidan<\/strong>.<\/p>\n\n\n\n

8. The most fertile soil in Karnataka is \u2014<\/mark><\/strong>
A) Red soil
B) Laterite soil
C) Black cotton soil
D) Sandy soil
\u00a0Answer:<\/strong> C) Black cotton soil
Explanation:<\/strong> Black soils<\/strong>, found in the Krishna basin<\/strong>, are rich in clay and lime<\/strong>, ideal for cotton and sugarcane.<\/strong><\/p>\n\n\n\n

9. The black cotton soil of Karnataka is locally known as \u2014<\/strong><\/mark>
A) Karimooru
B) Kari mannu
C) Haladi mannu
D) Kemmannu
\u00a0Answer:<\/strong> B) Kari mannu
Explanation:<\/strong> In Kannada, \u2018Kari Mannu\u2019<\/strong> means black soil<\/strong>, found mainly in northern districts<\/strong>.<\/p>\n\n\n\n

10. The red soil of Karnataka is locally called \u2014<\/mark><\/strong>
A) Kari mannu
B) Kemmannu
C) Maralu mannu
D) Matti
\u00a0Answer:<\/strong> B) Kemmannu
Explanation:<\/strong> Red soils<\/strong>, locally called Kemmannu<\/strong>, dominate the southern and eastern maidan regions<\/strong>.<\/p>\n\n\n\n

11. The process of leaching removes which component from the soil?
<\/mark><\/strong>A) Iron
B) Calcium and nutrients
C) Nitrogen only
D) Humus
\u00a0Answer:<\/strong> B) Calcium and nutrients
Explanation:<\/strong> Leaching<\/strong> caused by heavy rainfall<\/strong> removes lime and soluble nutrients<\/strong>, leading to laterite formation<\/strong>.<\/p>\n\n\n\n

12. The fertility of soil depends on \u2014<\/mark><\/strong>
A) Rock hardness
B) Organic matter and mineral content
C) River proximity only
D) Rainfall alone
\u00a0Answer:<\/strong> B) Organic matter and mineral content
Explanation:<\/strong> Soil fertility<\/strong> is determined by humus, nitrogen, and mineral nutrients<\/strong> available for crops.<\/p>\n\n\n\n

13. Laterization is prominent in \u2014<\/strong><\/mark>
A) Coastal and Malnad regions
B) Northern plateau
C) Eastern dry zone
D) Semi-arid regions
\u00a0Answer:<\/strong> A) Coastal and Malnad regions
Explanation:<\/strong> Heavy rainfall<\/strong> in the Western Ghats<\/strong> causes laterization<\/strong>, forming iron-rich red soils<\/strong>.<\/p>\n\n\n\n

14. The loamy soil suitable for horticulture in Karnataka is found in \u2014
<\/mark><\/strong>A) Kolar, Bengaluru, and Chikkaballapur
B) Raichur and Ballari
C) Udupi and Dakshina Kannada
D) Kalaburagi and Vijayapura
\u00a0Answer:<\/strong> A) Kolar, Bengaluru, and Chikkaballapur
Explanation:<\/strong> The loamy soils of the southern maidan<\/strong> are ideal for fruits, vegetables, and floriculture<\/strong>.<\/p>\n\n\n\n

15. The most common soil order found in Karnataka is \u2014<\/mark><\/strong>
A) Alfisols
B) Vertisols
C) Laterites
D) Aridisols
\u00a0Answer:<\/strong> A) Alfisols
Explanation:<\/strong> Alfisols<\/strong> (red loamy soils) dominate Karnataka, particularly in southern and eastern zones<\/strong>.<\/p>\n\n\n\n

16. The soils of the coastal region are generally \u2014<\/mark><\/strong>
A) Black cotton soils
B) Lateritic and alluvial
C) Sandy and saline
D) Red loamy only
\u00a0Answer:<\/strong> B) Lateritic and alluvial
Explanation:<\/strong> Karavali soils<\/strong> are lateritic on slopes<\/strong> and alluvial near estuaries and deltas<\/strong>.<\/p>\n\n\n\n

17. Which district has the highest soil fertility in Karnataka?<\/mark><\/strong>
A) Raichur
B) Mandya
C) Belagavi
D) Ballari
\u00a0Answer:<\/strong> C) Belagavi
Explanation:<\/strong> Belagavi<\/strong> has fertile black and red soils<\/strong>, supporting sugarcane, maize, and paddy cultivation.<\/strong><\/p>\n\n\n\n

18. The least fertile soils in Karnataka are \u2014<\/mark><\/strong>
A) Red loamy soils
B) Laterite soils
C) Alluvial soils
D) Black soils
\u00a0Answer:<\/strong> B) Laterite soils
Explanation:<\/strong> Laterite soils<\/strong> are acidic, poor in nutrients<\/strong>, and require manure and irrigation<\/strong> for productivity.<\/p>\n\n\n\n

19. The best soils for cotton cultivation are \u2014<\/mark><\/strong>
A) Red
B) Black
C) Lateritic
D) Sandy
\u00a0Answer:<\/strong> B) Black
Explanation:<\/strong> Black cotton soils (Regur)<\/strong> have high clay content<\/strong> and moisture-holding capacity ideal for cotton.<\/p>\n\n\n\n

20. The soils in Karnataka are mainly formed by the weathering of \u2014<\/mark><\/strong>
A) Sedimentary rocks
B) Granites, gneisses, and basalts
C) Sandstone and limestone
D) Quartzite only
\u00a0Answer:<\/strong> B) Granites, gneisses, and basalts
Explanation:<\/strong> Karnataka\u2019s plateau consists largely of granitic and basaltic formations<\/strong>, forming red and black soils.<\/strong><\/p>\n\n\n\n

21. Soil texture refers to \u2014
<\/mark><\/strong>A) Soil color
B) Size of soil particles
C) Soil depth
D) Soil moisture content
\u00a0Answer:<\/strong> B) Size of soil particles
Explanation:<\/strong> Texture<\/strong> defines sand, silt, and clay proportions<\/strong> that affect soil fertility and drainage.<\/p>\n\n\n\n

22. The main factor responsible for red coloration of red soils is \u2014<\/mark><\/strong>
A) Iron oxide
B) Manganese
C) Nitrogen
D) Phosphorus
\u00a0Answer:<\/strong> A) Iron oxide
Explanation:<\/strong> Iron oxide coating<\/strong> gives the soil its characteristic red color<\/strong>.<\/p>\n\n\n\n

23. Which of the following soils is richest in humus?<\/mark><\/strong>
A) Alluvial soil
B) Black soil
C) Lateritic soil
D) Red soil
\u00a0Answer:<\/strong> A) Alluvial soil
Explanation:<\/strong> Alluvial soils<\/strong> contain organic matter and fine sediments<\/strong>, especially near river valleys.<\/p>\n\n\n\n

24. The soil that becomes hard on drying and sticky when wet is \u2014
<\/mark><\/strong>A) Sandy
B) Lateritic
C) Black cotton soil
D) Alluvial
\u00a0Answer:<\/strong> C) Black cotton soil
Explanation:<\/strong> Due to high clay (montmorillonite)<\/strong> content, black soils<\/strong> show shrink\u2013swell properties.<\/strong><\/p>\n\n\n\n

25. The most extensive soil in northern Karnataka is \u2014
<\/mark><\/strong>A) Black
B) Red
C) Laterite
D) Sandy
\u00a0Answer:<\/strong> A) Black
Explanation:<\/strong> The Krishna\u2013Bhima basin<\/strong> in Raichur, Kalaburagi, Vijayapura<\/strong> is covered by deep black cotton soils.<\/strong><\/p>\n\n\n\n

26. The red soils of Karnataka are mainly formed from \u2014
<\/mark><\/strong>A) Granite and gneiss rocks
B) Basalt rocks
C) Limestone deposits
D) Alluvial sediments
\u00a0Answer:<\/strong> A) Granite and gneiss rocks
Explanation:<\/strong> Red soils<\/strong> are derived from granitic and gneissic rocks<\/strong>, typical of the southern and eastern maidan regions<\/strong>.<\/p>\n\n\n\n

27. The red color of red soil is due to \u2014
<\/mark><\/strong>A) Nitrogen
B) Iron oxide
C) Manganese
D) Copper
\u00a0Answer:<\/strong> B) Iron oxide
Explanation:<\/strong> The presence of ferric oxide (Fe\u2082O\u2083)<\/strong> imparts the reddish hue<\/strong> to these soils.<\/p>\n\n\n\n

28. The red soils cover about what percentage of Karnataka\u2019s area?
<\/mark><\/strong>A) 25%
B) 35%
C) 45%
D) 55%
\u00a0Answer:<\/strong> D) 55%
Explanation:<\/strong> Red soils<\/strong> are the most widespread<\/strong>, covering over half of Karnataka\u2019s geographical area<\/strong>.<\/p>\n\n\n\n

29. Red soils are dominant in which districts?
<\/mark><\/strong>A) Mysuru, Mandya, Tumakuru, Kolar, Chitradurga
B) Raichur and Ballari
C) Uttara Kannada and Udupi
D) Belagavi and Dharwad
\u00a0Answer:<\/strong> A) Mysuru, Mandya, Tumakuru, Kolar, Chitradurga
Explanation:<\/strong> Southern and central maidan districts<\/strong> have extensive red loamy soils derived from granitic rocks.<\/p>\n\n\n\n

30. The texture of red soil is usually \u2014<\/mark><\/strong>
A) Sandy loam to clayey loam
B) Pure clay
C) Silty clay
D) Coarse sand
\u00a0Answer:<\/strong> A) Sandy loam to clayey loam
Explanation:<\/strong> Red soils vary from light sandy to medium loamy<\/strong>, with moderate permeability.<\/p>\n\n\n\n

31. Red soils are generally poor in \u2014<\/mark><\/strong>
A) Iron
B) Potash and lime
C) Nitrogen, humus, and phosphorus
D) Water content
\u00a0Answer:<\/strong> C) Nitrogen, humus, and phosphorus
Explanation:<\/strong> Low organic matter<\/strong> and deficient nitrogen<\/strong> make red soils less fertile<\/strong> unless manured.<\/p>\n\n\n\n

32. Crops commonly grown on red soils include \u2014<\/mark><\/strong>
A) Paddy, sugarcane
B) Ragi, groundnut, millets, pulses
C) Cotton and wheat
D) Coffee and cardamom
\u00a0Answer:<\/strong> B) Ragi, groundnut, millets, pulses
Explanation:<\/strong> Red soils<\/strong> suit rainfed crops<\/strong> like ragi and pulses<\/strong>, typical of the dry maidan.<\/p>\n\n\n\n

33. Red loamy soils are best suited for \u2014<\/mark><\/strong>
A) Sugarcane
B) Fruits, vegetables, and millets
C) Coffee
D) Tea
\u00a0Answer:<\/strong> B) Fruits, vegetables, and millets
Explanation:<\/strong> With irrigation and organic matter<\/strong>, red loams support horticulture <\/strong><\/p>\n\n\n\n

34. The black soils of Karnataka are derived from \u2014<\/mark><\/strong>
A) Granite
B) Basalt (Deccan Trap)
C) Sandstone
D) Limestone
\u00a0Answer:<\/strong> B) Basalt (Deccan Trap)
Explanation:<\/strong> Black soils<\/strong> are formed by weathering of basaltic rocks<\/strong> of the Deccan plateau<\/strong>.<\/p>\n\n\n\n

35. Black soils are dominant in which river basin?<\/mark><\/strong>
A) Cauvery
B) Krishna\u2013Bhima basin
C) Sharavathi basin
D) Netravati basin
\u00a0Answer:<\/strong> B) Krishna\u2013Bhima basin
Explanation:<\/strong> The Krishna and Bhima basins<\/strong> in northern Karnataka<\/strong> are covered by deep black soils<\/strong>.<\/p>\n\n\n\n

36. Black soils occupy approximately what percentage of Karnataka\u2019s area?<\/mark><\/strong>
A) 10%
B) 15%
C) 20%
D) 25%
\u00a0Answer:<\/strong> C) 20%
Explanation:<\/strong> Around one-fifth<\/strong> of Karnataka\u2019s total area has black cotton soils<\/strong>.<\/p>\n\n\n\n

37. The districts with extensive black soil are \u2014<\/mark><\/strong>
A) Kalaburagi, Vijayapura, Raichur, Bagalkot
B) Kodagu and Udupi
C) Tumakuru and Kolar
D) Chikkamagaluru and Hassan
\u00a0Answer:<\/strong> A) Kalaburagi, Vijayapura, Raichur, Bagalkot
Explanation:<\/strong> Northern dry districts<\/strong> in the Krishna\u2013Bhima valley<\/strong> are the main black soil regions<\/strong>.<\/p>\n\n\n\n

38. The black soils are rich in \u2014<\/mark><\/strong>
A) Iron and lime
B) Nitrogen and humus
C) Phosphorus and potash
D) Organic carbon
\u00a0Answer:<\/strong> A) Iron and lime
Explanation:<\/strong> Black soils contain lime, iron, magnesium<\/strong>, and retain moisture<\/strong> effectively.<\/p>\n\n\n\n

39. The main crop grown on black soil is \u2014<\/mark><\/strong>
A) Cotton
B) Rice
C) Ragi
D) Wheat
\u00a0Answer:<\/strong> A) Cotton
Explanation:<\/strong> Cotton<\/strong> thrives in moisture-retaining black soils<\/strong>, hence the name \u201cRegur\u201d or cotton soil<\/strong>.<\/p>\n\n\n\n

40. Apart from cotton, black soils are also suitable for \u2014<\/strong><\/mark>
A) Sugarcane and maize
B) Tea and coffee
C) Millets only
D) Rubber
\u00a0Answer:<\/strong> A) Sugarcane and maize
Explanation:<\/strong> Black soils support cash crops<\/strong> like sugarcane, maize, and oilseeds<\/strong> with irrigation.<\/p>\n\n\n\n

41. The shrink\u2013swell property of black soil is due to \u2014<\/mark><\/strong>
A) High humus content
B) Montmorillonite clay minerals
C) Organic acids
D) Silica sand
\u00a0Answer:<\/strong> B) Montmorillonite clay minerals
Explanation:<\/strong> These clays expand when wet<\/strong> and crack when dry<\/strong>, affecting building foundations and tillage.<\/p>\n\n\n\n

42. Laterite soils are formed due to \u2014<\/mark><\/strong>
A) High rainfall and leaching of bases
B) Lack of rainfall
C) Glacial deposits
D) Sedimentary accumulation
\u00a0Answer:<\/strong> A) High rainfall and leaching of bases
Explanation:<\/strong> Laterization<\/strong> occurs under intense rainfall<\/strong>, washing away silica and leaving iron\u2013aluminium oxides<\/strong>.<\/p>\n\n\n\n

43. Laterite soils are found predominantly in \u2014<\/mark><\/strong>
A) Coastal and Malnad regions
B) Northern plateau
C) Eastern dry zone
D) Central Maidan
\u00a0Answer:<\/strong> A) Coastal and Malnad regions
Explanation:<\/strong> Western Ghats and coastal belts (Karavali)<\/strong> have iron-rich laterite soils<\/strong>.<\/p>\n\n\n\n

44. The color of laterite soil is \u2014<\/mark><\/strong>
A) Black
B) Red to brown
C) Yellow
D) Grey
\u00a0Answer:<\/strong> B) Red to brown
Explanation:<\/strong> Oxidation of iron<\/strong> gives red or brown color<\/strong> to lateritic soils<\/strong>.<\/p>\n\n\n\n

45. The fertility of laterite soil is \u2014<\/mark><\/strong>
A) High naturally
B) Moderate
C) Poor unless manured
D) Rich in nitrogen
\u00a0Answer:<\/strong> C) Poor unless manured
Explanation:<\/strong> Leaching removes nutrients<\/strong>, making laterite soils poor<\/strong>, though suitable for crops with manure.<\/p>\n\n\n\n

46. Crops grown on laterite soils include \u2014<\/mark><\/strong>
A) Coffee, tea, arecanut, coconut
B) Cotton and maize
C) Wheat and barley
D) Pulses and millets
\u00a0Answer:<\/strong> A) Coffee, tea, arecanut, coconut
Explanation:<\/strong> With irrigation and organic inputs, laterite soils<\/strong> in Malnad and Karavali<\/strong> support plantation crops<\/strong>.<\/p>\n\n\n\n

47. Laterite soils are locally used for \u2014<\/mark><\/strong>
A) Making bricks and tiles
B) Fuel
C) Pottery only
D) Manure
\u00a0Answer:<\/strong> A) Making bricks and tiles
Explanation:<\/strong> Hard laterite blocks<\/strong> are used in coastal construction<\/strong> and red-tile industries<\/strong>.<\/p>\n\n\n\n

48. Alluvial soils of Karnataka are found mainly in \u2014<\/strong><\/mark>
A) River valleys of Krishna, Cauvery, and Tungabhadra
B) Malnad slopes
C) Coastal plateaus
D) Northern dry zone uplands
\u00a0Answer:<\/strong> A) River valleys of Krishna, Cauvery, and Tungabhadra
Explanation:<\/strong> Alluvial deposits<\/strong> occur in floodplains and deltas<\/strong> of major rivers.<\/p>\n\n\n\n

49. Alluvial soils are generally \u2014<\/mark><\/strong>
A) Fertile and rich in nutrients
B) Poor and acidic
C) Rocky and saline
D) Sandy and infertile
\u00a0Answer:<\/strong> A) Fertile and rich in nutrients
Explanation:<\/strong> Alluvial soils<\/strong> are rich in humus, nitrogen, and potash<\/strong>, ideal for paddy and sugarcane<\/strong>.<\/p>\n\n\n\n

50. The main crops grown in alluvial soils are \u2014<\/mark><\/strong>
A) Paddy, sugarcane, banana
B) Cotton, maize, pulses
C) Coffee, cardamom
D) Groundnut and sunflower
\u00a0Answer:<\/strong> A) Paddy, sugarcane, banana
Explanation:<\/strong> Alluvial tracts<\/strong> in Raichur, Mandya, and Mysuru<\/strong> support paddy and irrigated cash crops<\/strong>.<\/p>\n\n\n\n

51. The Northern Dry Zone of Karnataka mainly has \u2014<\/mark><\/strong>
A) Red loamy soils
B) Black cotton soils
C) Alluvial soils
D) Lateritic soils
\u00a0Answer:<\/strong> B) Black cotton soils
Explanation:<\/strong> The northern plateau (Raichur, Ballari, Kalaburagi)<\/strong> has deep black soils<\/strong> formed from basaltic rocks<\/strong>, suitable for cotton and sugarcane<\/strong>.<\/p>\n\n\n\n

52. The Southern Maidan (Bayaluseeme) region is dominated by \u2014<\/mark><\/strong>
A) Red loamy and lateritic soils
B) Black soils
C) Sandy soils
D) Alluvial deposits
\u00a0Answer:<\/strong> A) Red loamy and lateritic soils
Explanation:<\/strong> Mysuru, Mandya, Tumakuru, and Kolar<\/strong> districts have red loamy soils<\/strong>, suitable for ragi and groundnut cultivation<\/strong>.<\/p>\n\n\n\n

53. The Coastal (Karavali) region mainly contains \u2014<\/mark><\/strong>
A) Black soils
B) Laterite and sandy alluvial soils
C) Red clay soils
D) Limestone soils
\u00a0Answer:<\/strong> B) Laterite and sandy alluvial soils
Explanation:<\/strong> Heavy rainfall<\/strong> and marine influence<\/strong> in Uttara Kannada, Udupi, Dakshina Kannada<\/strong> produce lateritic and sandy soils<\/strong>.<\/p>\n\n\n\n

54. The Malnad region has mostly \u2014<\/mark><\/strong>
A) Lateritic soils
B) Alluvial soils
C) Sandy soils
D) Black soils
\u00a0Answer:<\/strong> A) Lateritic soils
Explanation:<\/strong> The Malnad hill slopes<\/strong> are covered by iron-rich lateritic soils<\/strong>, suitable for coffee, arecanut, and cardamom.<\/strong><\/p>\n\n\n\n

55. The Eastern Dry Zone soils are \u2014<\/strong><\/mark>
A) Red and light-textured
B) Black and heavy
C) Lateritic and wet
D) Sandy and saline
\u00a0Answer:<\/strong> A) Red and light-textured
Explanation:<\/strong> The eastern dry districts (Kolar, Tumakuru, Bengaluru)<\/strong> have light red soils<\/strong> that need irrigation and organic manure<\/strong>.<\/p>\n\n\n\n

56. The Western Ghats zone has \u2014<\/mark><\/strong>
A) Deep black soils
B) Highly leached laterite soils
C) Red sandy soils
D) Loamy alluvium
\u00a0Answer:<\/strong> B) Highly leached laterite soils
Explanation:<\/strong> Due to heavy rainfall (250\u2013400 cm)<\/strong>, the Western Ghats<\/strong> soils are acidic, leached, and iron-rich.<\/strong><\/p>\n\n\n\n

57. The Krishna river basin soils are \u2014<\/mark><\/strong>
A) Alluvial and black soils
B) Sandy and infertile
C) Red and yellow
D) Lateritic
\u00a0Answer:<\/strong> A) Alluvial and black soils
Explanation:<\/strong> Krishna\u2013Bhima basin<\/strong> is characterized by black and alluvial soils<\/strong>, supporting sugarcane and cotton<\/strong>.<\/p>\n\n\n\n

58. The Cauvery basin soils are primarily \u2014<\/mark><\/strong>
A) Lateritic
B) Red loamy and alluvial
C) Sandy
D) Black
\u00a0Answer:<\/strong> B) Red loamy and alluvial
Explanation:<\/strong> The Cauvery basin (Mandya, Mysuru)<\/strong> has fertile red loam and alluvial soils<\/strong>, ideal for paddy and sugarcane.<\/strong><\/p>\n\n\n\n

59. The Tungabhadra basin soils are suitable for \u2014<\/mark><\/strong>
A) Cotton
B) Paddy and sugarcane under irrigation
C) Millets only
D) Coffee and tea
\u00a0Answer:<\/strong> B) Paddy and sugarcane under irrigation
Explanation:<\/strong> Canal irrigation from Tungabhadra dam<\/strong> supports paddy, banana, and sugarcane<\/strong> cultivation in Raichur and Ballari<\/strong>.<\/p>\n\n\n\n

60. The coastal alluvial soils support cultivation of \u2014<\/mark><\/strong>
A) Cotton and maize
B) Paddy and coconut
C) Pulses and wheat
D) Sugarcane and sunflower
\u00a0Answer:<\/strong> B) Paddy and coconut
Explanation:<\/strong> High rainfall and fertile coastal soils<\/strong> encourage paddy and coconut plantations<\/strong> in Karavali<\/strong>.<\/p>\n\n\n\n

61. Which soil of Karnataka is most suitable for sugarcane cultivation?
<\/mark><\/strong>A) Black soil
B) Red loam
C) Laterite
D) Sandy
\u00a0Answer:<\/strong> A) Black soil
Explanation:<\/strong> Deep black soils<\/strong> retain moisture and nutrients<\/strong>, ideal for sugarcane and cotton<\/strong>.<\/p>\n\n\n\n

62. The soil best suited for ragi cultivation is \u2014
<\/mark><\/strong>A) Red loamy soil
B) Lateritic soil
C) Alluvial soil
D) Black soil
\u00a0Answer:<\/strong> A) Red loamy soil
Explanation:<\/strong> Ragi (finger millet)<\/strong> grows well on well-drained red loamy soils<\/strong> in southern Karnataka<\/strong>.<\/p>\n\n\n\n

63. Groundnut cultivation is best suited for \u2014
<\/mark><\/strong>A) Red sandy soils
B) Black soils
C) Lateritic soils
D) Clayey soils
\u00a0Answer:<\/strong> A) Red sandy soils
Explanation:<\/strong> Red sandy soils<\/strong> with good drainage and moderate fertility are ideal for groundnut<\/strong>.<\/p>\n\n\n\n

64. Coffee and arecanut plantations grow best in \u2014
<\/mark><\/strong>A) Lateritic soils with heavy rainfall
B) Sandy soils
C) Black soils
D) Red dry soils
\u00a0Answer:<\/strong> A) Lateritic soils with heavy rainfall
Explanation:<\/strong> Laterite soils<\/strong> in Malnad<\/strong> with humid conditions<\/strong> are perfect for coffee and arecanut<\/strong>.<\/p>\n\n\n\n

65. Paddy cultivation in Karnataka is concentrated in \u2014
<\/mark><\/strong>A) Coastal and irrigated basins
B) Northern dry areas
C) Eastern plateaus
D) Hilly slopes only
\u00a0Answer:<\/strong> A) Coastal and irrigated basins
Explanation:<\/strong> Paddy<\/strong> requires waterlogged conditions<\/strong>, found in coastal, Cauvery, and Tungabhadra basins<\/strong>.<\/p>\n\n\n\n

66. Cotton cultivation is mainly concentrated in \u2014
<\/mark><\/strong>A) Krishna\u2013Bhima basin
B) Malnad region
C) Coastal belt
D) Kodagu
\u00a0Answer:<\/strong> A) Krishna\u2013Bhima basin
Explanation:<\/strong> Black cotton soils<\/strong> in Raichur, Kalaburagi, and Vijayapura<\/strong> support cotton<\/strong> cultivation.<\/p>\n\n\n\n

67. Red loamy soils are fertile for which horticultural crops?
<\/mark><\/strong>A) Mango, sapota, banana
B) Tea, coffee
C) Cotton, maize
D) Pulses only
\u00a0Answer:<\/strong> A) Mango, sapota, banana
Explanation:<\/strong> Red loams<\/strong>, when irrigated and manured, support fruit crops and floriculture<\/strong>.<\/p>\n\n\n\n

68. The soil most suitable for horticulture (floriculture and fruits) near Bengaluru is \u2014
<\/mark><\/strong>A) Red loamy soil
B) Black cotton soil
C) Laterite soil
D) Alluvial soil
\u00a0Answer:<\/strong> A) Red loamy soil
Explanation:<\/strong> Red loams of Bengaluru and Kolar<\/strong> are ideal for flowers, vegetables, and fruits<\/strong>.<\/p>\n\n\n\n

69. The fertility of red soil can be improved by \u2014
<\/mark><\/strong>A) Adding organic manure and lime
B) Reducing irrigation
C) Adding sand
D) Sun drying
\u00a0Answer:<\/strong> A) Adding organic manure and lime
Explanation:<\/strong> Lime corrects acidity<\/strong>, and organic matter<\/strong> enhances nutrient and moisture content<\/strong> in red soils.<\/p>\n\n\n\n

70. Laterite soils need which nutrient most for improvement?
<\/mark><\/strong>A) Nitrogen
B) Calcium and organic matter
C) Magnesium
D) Iron
\u00a0Answer:<\/strong> B) Calcium and organic matter
Explanation:<\/strong> Laterite soils<\/strong> are acidic and poor in calcium<\/strong>, hence require lime and compost<\/strong> for cultivation.<\/p>\n\n\n\n

71. The Malnad zone\u2019s main crops based on soil and climate are \u2014
<\/mark><\/strong>A) Coffee, pepper, arecanut
B) Cotton, maize, jowar
C) Wheat and pulses
D) Sugarcane and banana
\u00a0Answer:<\/strong> A) Coffee, pepper, arecanut
Explanation:<\/strong> Lateritic soils<\/strong> and humid conditions<\/strong> of Malnad<\/strong> favor plantation crops<\/strong>.<\/p>\n\n\n\n

72. The Coastal (Karavali) region mainly grows \u2014
<\/mark><\/strong>A) Cotton and maize
B) Paddy and coconut
C) Millets and pulses
D) Tea and wheat
\u00a0Answer:<\/strong> B) Paddy and coconut
Explanation:<\/strong> Sandy alluvial soils and heavy rainfall<\/strong> in Karavali<\/strong> suit wet paddy and coconut<\/strong> farming.<\/p>\n\n\n\n

73. The Northern Dry Zone\u2019s main crops are \u2014
<\/mark><\/strong>A) Jowar, cotton, groundnut
B) Paddy, sugarcane, banana
C) Tea, coffee, pepper
D) Maize, ragi, onion
\u00a0Answer:<\/strong> A) Jowar, cotton, groundnut
Explanation:<\/strong> Dry climate and black soils<\/strong> favor rainfed crops<\/strong> like jowar and oilseeds<\/strong>.<\/p>\n\n\n\n

74. The Southern Maidan (Tumakuru, Kolar) specializes in \u2014
<\/mark><\/strong>A) Ragi, groundnut, pulses
B) Paddy and sugarcane
C) Coffee
D) Cotton
\u00a0Answer:<\/strong> A) Ragi, groundnut, pulses
Explanation:<\/strong> The red loamy soils<\/strong> of the southern maidan<\/strong> support millets and legumes<\/strong> under rainfed farming.<\/p>\n\n\n\n

75. The Cauvery basin (Mandya, Mysuru) is known for \u2014
<\/mark><\/strong>A) Irrigated paddy and sugarcane
B) Cotton and ragi
C) Pulses and onion
D) Coffee and pepper
\u00a0Answer:<\/strong> A) Irrigated paddy and sugarcane
Explanation:<\/strong> Cauvery basin alluvium and canal irrigation<\/strong> make this region the rice\u2013sugarcane belt<\/strong> of Karnataka.<\/p>\n\n\n\n

76. The major cause of soil erosion in Karnataka is \u2014
<\/mark><\/strong>A) Heavy rainfall in Malnad and deforestation
B) Industrial pollution
C) Volcanic activity
D) Urbanization
\u00a0Answer:<\/strong> A) Heavy rainfall in Malnad and deforestation
Explanation:<\/strong> High rainfall<\/strong>, coupled with deforestation and slope cultivation<\/strong> in the Western Ghats<\/strong>, accelerates soil erosion<\/strong>.<\/p>\n\n\n\n

77. The type of soil erosion most common in the hilly areas of Karnataka is \u2014
<\/mark><\/strong>A) Wind erosion
B) Sheet and gully erosion
C) Glacier erosion
D) Marine erosion
\u00a0Answer:<\/strong> B) Sheet and gully erosion
Explanation:<\/strong> In the Malnad and Western Ghats<\/strong>, surface runoff<\/strong> causes sheet and gully erosion<\/strong>.<\/p>\n\n\n\n

78. Wind erosion is mainly seen in \u2014
<\/mark><\/strong>A) Northern Dry Zone (Ballari, Raichur, Vijayapura)
B) Coastal region
C) Kodagu
D) Malnad
\u00a0Answer:<\/strong> A) Northern Dry Zone (Ballari, Raichur, Vijayapura)
Explanation:<\/strong> Strong winds<\/strong> in dry, bare fields<\/strong> of northern Karnataka cause wind erosion<\/strong> of topsoil.<\/p>\n\n\n\n

79. Soil erosion due to running water is high in \u2014
<\/mark><\/strong>A) Hilly and high rainfall regions
B) Arid plains
C) Irrigated command areas
D) Urban belts
\u00a0Answer:<\/strong> A) Hilly and high rainfall regions
Explanation:<\/strong> Slope, rainfall, and vegetation loss<\/strong> in the Ghats and Malnad<\/strong> lead to runoff erosion<\/strong>.<\/p>\n\n\n\n

80. The loss of soil fertility due to nutrient removal and leaching is called \u2014
<\/mark><\/strong>A) Salinization
B) Degradation
C) Laterization
D) Denudation
\u00a0Answer:<\/strong> B) Degradation
Explanation:<\/strong> Soil degradation<\/strong> occurs when nutrients and organic matter<\/strong> are lost, reducing fertility.<\/p>\n\n\n\n

81. The soil erosion rate is highest in which part of Karnataka?
<\/mark><\/strong>A) Western Ghats
B) Northern dry zone
C) Coastal plains
D) Central Maidan
\u00a0Answer:<\/strong> A) Western Ghats
Explanation:<\/strong> The steep slopes, heavy rains, and deforestation<\/strong> in the Ghats<\/strong> cause severe erosion and landslides.<\/strong><\/p>\n\n\n\n

82. Salinity and alkalinity in soils are common in \u2014
<\/mark><\/strong>A) Tungabhadra command area
B) Coastal laterite zone
C) Kodagu coffee plantations
D) Malnad forests
\u00a0Answer:<\/strong> A) Tungabhadra command area
Explanation:<\/strong> Over-irrigation and poor drainage<\/strong> in Tungabhadra canals<\/strong> cause waterlogging and salinity<\/strong>.<\/p>\n\n\n\n

83. Soil erosion affects Karnataka mainly by \u2014
<\/mark><\/strong>A) Reducing crop yield and fertility
B) Increasing soil pH
C) Increasing rainfall
D) Decreasing evaporation
\u00a0Answer:<\/strong> A) Reducing crop yield and fertility
Explanation:<\/strong> Loss of topsoil<\/strong> removes nutrients<\/strong>, directly reducing productivity and soil health<\/strong>.<\/p>\n\n\n\n

84. The major causes of soil degradation in Karnataka are \u2014
<\/mark><\/strong>A) Deforestation, overgrazing, and unscientific agriculture
B) Volcanic eruption
C) Glacier movement
D) Urban flooding
\u00a0Answer:<\/strong> A) Deforestation, overgrazing, and unscientific agriculture
Explanation:<\/strong> These human-induced activities<\/strong> accelerate erosion, compaction, and nutrient loss<\/strong>.<\/p>\n\n\n\n

85. The process of converting fertile land into desert-like conditions is called \u2014
<\/strong><\/mark>A) Salinization
B) Desertification
C) Denudation
D) Aridification
\u00a0Answer:<\/strong> B) Desertification
Explanation:<\/strong> Desertification<\/strong> occurs due to overexploitation and climate change<\/strong>, visible in north Karnataka<\/strong>.<\/p>\n\n\n\n

86. The main aim of soil conservation is to \u2014
<\/mark><\/strong>A) Stop soil erosion and maintain fertility
B) Increase urban areas
C) Grow industrial crops
D) Promote mining
\u00a0Answer:<\/strong> A) Stop soil erosion and maintain fertility
Explanation:<\/strong> Soil conservation<\/strong> ensures sustainable agriculture<\/strong> and prevention of erosion and nutrient loss<\/strong>.<\/p>\n\n\n\n

87. The best method of soil conservation on steep slopes is \u2014
<\/mark><\/strong>A) Terracing and contour bunding
B) Strip cropping
C) Windbreaks
D) Mulching only
\u00a0Answer:<\/strong> A) Terracing and contour bunding
Explanation:<\/strong> Contour farming<\/strong> reduces runoff and erosion<\/strong> in hilly and high-rainfall areas<\/strong>.<\/p>\n\n\n\n

88. The best soil conservation measure in dry zones is \u2014
<\/mark><\/strong>A) Afforestation and shelter belts
B) Drip irrigation
C) Soil sterilization
D) Quarrying
\u00a0Answer:<\/strong> A) Afforestation and shelter belts
Explanation:<\/strong> Tree belts<\/strong> act as wind barriers<\/strong>, preventing soil erosion and moisture loss<\/strong> in dry regions<\/strong>.<\/p>\n\n\n\n

89. The \u201cRidge and Furrow\u201d method helps in \u2014
<\/mark><\/strong>A) Preventing soil erosion and conserving moisture
B) Irrigation canal building
C) Soil compaction
D) Deforestation
\u00a0Answer:<\/strong> A) Preventing soil erosion and conserving moisture
Explanation:<\/strong> Ridges trap rainfall<\/strong>, reducing runoff<\/strong> and increasing soil moisture<\/strong> retention.<\/p>\n\n\n\n

90. The \u201cBench terracing\u201d technique is used in \u2014
<\/mark><\/strong>A) Western Ghats and hilly areas
B) Coastal plains
C) Northern dry plains
D) Irrigated paddy fields
\u00a0Answer:<\/strong> A) Western Ghats and hilly areas
Explanation:<\/strong> Bench terraces<\/strong> help reduce slope gradient<\/strong> and control soil wash<\/strong> in Malnad hills<\/strong>.<\/p>\n\n\n\n

91. The process of planting grasses to stabilize soil on slopes is called \u2014
<\/mark><\/strong>A) Strip cropping
B) Grassing
C) Vegetative bunding
D) Reclamation
\u00a0Answer:<\/strong> C) Vegetative bunding
Explanation:<\/strong> Grass roots bind the soil<\/strong>, preventing erosion and increasing water infiltration.<\/p>\n\n\n\n

92. Contour bunding is practiced mainly in \u2014
<\/mark><\/strong>A) Semi-arid areas
B) Coastal regions
C) Rainforest zones
D) Urban areas
\u00a0Answer:<\/strong> A) Semi-arid areas
Explanation:<\/strong> Contour bunds<\/strong> help retain rainfall<\/strong> and minimize runoff<\/strong> in dry farming regions<\/strong>.<\/p>\n\n\n\n

93. The main soil conservation crops used as cover crops are \u2014
<\/mark><\/strong>A) Grasses and legumes
B) Cotton and maize
C) Paddy and wheat
D) Sugarcane and banana
\u00a0Answer:<\/strong> A) Grasses and legumes
Explanation:<\/strong> Cover crops like legumes<\/strong> reduce erosion<\/strong>, fix nitrogen<\/strong>, and improve fertility<\/strong>.<\/p>\n\n\n\n

94. Shelterbelts are mainly used to \u2014
<\/strong><\/mark>A) Protect soil from wind erosion
B) Increase soil salinity
C) Reduce humidity
D) Encourage rainfall
\u00a0Answer:<\/strong> A) Protect soil from wind erosion
Explanation:<\/strong> Trees planted in rows<\/strong> act as windbreaks<\/strong>, reducing soil loss<\/strong> in northern Karnataka<\/strong>.<\/p>\n\n\n\n

95. The \u201cBhoomi\u201d project in Karnataka is related to \u2014
<\/mark><\/strong>A) Digitization of land records
B) Organic farming
C) Soil reclamation
D) Irrigation canals
\u00a0Answer:<\/strong> A) Digitization of land records
Explanation:<\/strong> Bhoomi Project<\/strong> digitizes land ownership and soil data<\/strong> for efficient agricultural management.<\/p>\n\n\n\n

96. The \u201cBhoo Chetana\u201d program was launched to \u2014
<\/mark><\/strong>A) Increase soil fertility through micronutrients
B) Promote cotton exports
C) Manage urban waste
D) Construct check dams only
\u00a0Answer:<\/strong> A) Increase soil fertility through micronutrients
Explanation:<\/strong> Bhoo Chetana (2009)<\/strong> enhances soil health<\/strong> using micronutrient application and farmer training.<\/strong><\/p>\n\n\n\n

97. The \u201cKrishi Bhagya\u201d scheme in Karnataka focuses on \u2014
<\/mark><\/strong>A) Water conservation and farm ponds in dryland farming
B) Fertilizer subsidy
C) Hybrid seed distribution
D) Irrigation canal building
\u00a0Answer:<\/strong> A) Water conservation and farm ponds in dryland farming
Explanation:<\/strong> Krishi Bhagya<\/strong> helps dryland farmers<\/strong> create farm ponds (Krishi Honda)<\/strong> for rainwater harvesting.<\/p>\n\n\n\n

98. The \u201cRaitha Siri\u201d program promotes \u2014
<\/mark><\/strong>A) Organic farming and millets
B) Cash crops
C) Mining activities
D) Urban horticulture
\u00a0Answer:<\/strong> A) Organic farming and millets
Explanation:<\/strong> Raitha Siri Yojane<\/strong> encourages organic and millet-based farming<\/strong> to improve soil health.<\/p>\n\n\n\n

99. The \u201cWatershed Development Programme\u201d aims to \u2014
<\/mark><\/strong>A) Conserve soil and water resources in rainfed areas
B) Promote mining
C) Urban forest planting
D) Highway construction
\u00a0Answer:<\/strong> A) Conserve soil and water resources in rainfed areas
Explanation:<\/strong> The Watershed Programme<\/strong> integrates soil conservation, afforestation, and rainwater harvesting<\/strong>.<\/p>\n\n\n\n

100. The long-term goal of Karnataka\u2019s \u201cGreening Mission\u201d is \u2014<\/strong><\/mark>
A) Increase forest and vegetation cover to 33%
B) Promote urban construction
C) Expand industrial zones
D) Replace agriculture with forestry
\u00a0Answer:<\/strong> A) Increase forest and vegetation cover to 33%
Explanation:<\/strong> The Greening Karnataka Mission (2015)<\/strong> aims to restore degraded lands<\/strong> and expand green cover<\/strong> for ecological balance<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"

1. The total geographical area of Karnataka is approximately \u2014A) 1.85 lakh sq kmB) 1.91 lakh sq kmC) 2.05 lakh sq kmD) 1.70 lakh sq km\u00a0Answer: B) 1.91 lakh sq kmExplanation: Karnataka covers 1,91,791 sq km, accounting for 5.8% of India\u2019s total area. 2. The soils of Karnataka are broadly classified into how many major<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"[]"},"categories":[11127],"tags":[15305,15306,15312,15324,15328,14155,15319,15321,15304,15320,15224,15309,15323,15308,15322,15326,15327,15314,4029,5649,5652,5623,15318,15311,15313,15329,15330,15317,15307,15310,15316,15315,11113,15325,15303],"class_list":{"0":"post-13681","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-karnataka-geography","7":"tag-agricultural-soil-karnataka","8":"tag-alluvial-soil-karnataka","9":"tag-black-soil-karnataka","10":"tag-forest-soil-karnataka","11":"tag-karnataka-agriculture","12":"tag-karnataka-competitive-exams","13":"tag-karnataka-eco-regions-2","14":"tag-karnataka-environment-geography","15":"tag-karnataka-geography","16":"tag-karnataka-geography-learning-2","17":"tag-karnataka-geography-mcqs","18":"tag-karnataka-geography-study-material-2","19":"tag-karnataka-natural-resources-2","20":"tag-karnataka-psc-geography-2","21":"tag-karnataka-soil-map","22":"tag-karnataka-ssc-geography-2","23":"tag-karnataka-upsc-geography-2","24":"tag-laterite-soil-karnataka","25":"tag-mcqs-adda","26":"tag-mcqs-for-pc-psi-sda-fda-pdo-vao-banking-kas-ias-ssc-gd-ssc-chsl-ssc-cgl-for-all-compitative-exams","27":"tag-mcqs-for-pc-psi-sda-fda-pdo-vao-banking-kas-ias-ssc-gd-ssc-chsl-ssc-cgl-for-all-compitative-examsin-kannada","28":"tag-mcqs-for-sda-fda-pdo-vao-banking-kas-ias-ssc-gd-ssc-chsl-ssc-cgl-for-all-compitative-exams","29":"tag-red-soil-karnataka","30":"tag-soil-conservation-karnataka","31":"tag-soil-erosion-karnataka","32":"tag-soil-facts-karnataka","33":"tag-soil-fertility-karnataka","34":"tag-soil-formation-karnataka","35":"tag-soil-in-karnataka","36":"tag-soil-profile-karnataka","37":"tag-soil-quiz-karnataka","38":"tag-soil-testing-karnataka","39":"tag-soil-top-100-mcqs-with-answer-and-explanation","40":"tag-soil-types-and-uses-karnataka","41":"tag-types-of-soil-karnataka"},"_links":{"self":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/13681","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/comments?post=13681"}],"version-history":[{"count":2,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/13681\/revisions"}],"predecessor-version":[{"id":13709,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/13681\/revisions\/13709"}],"wp:attachment":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/media?parent=13681"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/categories?post=13681"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/tags?post=13681"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}