1. The largest lake in Africa is:
A) Lake Tanganyika
B) Lake Malawi
C) Lake Victoria
D) Lake Chad
Answer: C
Explanation: Lake Victoria (~68,800 sq. km) is the largest in Africa and the world’s second largest freshwater lake by area.
2. Lake Victoria is shared by:
A) Tanzania, Uganda, Kenya
B) Tanzania, Rwanda, Burundi
C) Kenya, Ethiopia, Sudan
D) Uganda, DR Congo, Zambia
Answer: A
Explanation: These three East African countries share Lake Victoria.
3. The longest freshwater lake in the world is:
A) Lake Malawi
B) Lake Baikal
C) Lake Tanganyika
D) Lake Superior
Answer: C
Explanation: Lake Tanganyika (673 km long) is the world’s longest freshwater lake.
4. The deepest lake in Africa is:
A) Lake Victoria
B) Lake Tanganyika
C) Lake Malawi
D) Lake Chad
Answer: B
Explanation: Tanganyika (depth 1,470 m) is the 2nd deepest lake in the world after Baikal.
5. Lake Malawi is also known as:
A) Lake Nyasa
B) Lake Albert
C) Lake Edward
D) Lake Turkana
Answer: A
Explanation: In Tanzania, Malawi is called Lake Nyasa.
6. Lake Chad has been shrinking mainly due to:
A) Volcanic eruption
B) Climate change and irrigation
C) Earthquakes
D) Tsunamis
Answer: B
Explanation: Lake Chad has shrunk by ~90% since 1960s due to overuse and climate variability.
7. Which lake is located between DR Congo and Uganda?
A) Lake Edward
B) Lake Albert
C) Lake Kivu
D) Both A & B
Answer: D
Explanation: Both Lake Albert and Lake Edward lie along the DR Congo–Uganda border.
8. Lake Kivu lies between:
A) Rwanda and DR Congo
B) Kenya and Tanzania
C) Uganda and Sudan
D) Ethiopia and Eritrea
Answer: A
9. The Great Rift Valley of Africa is famous for:
A) Series of saltwater seas only
B) Chain of freshwater and salt lakes
C) Largest single lake in the world
D) Only volcanic mountains
Answer: B
Explanation: Rift Valley includes Victoria, Tanganyika, Malawi, Turkana, etc.
10. Which lake is the source of the White Nile?
A) Lake Chad
B) Lake Victoria
C) Lake Turkana
D) Lake Edward
Answer: B
11. The Caspian Sea is geographically a:
A) River basin
B) Largest inland lake
C) Gulf of ocean
D) Glacier-fed lagoon
Answer: B
Explanation: Caspian Sea (~371,000 sq. km) is the world’s largest enclosed inland water body.
12. The Caspian Sea is bordered by:
A) Russia, Kazakhstan, Iran, Turkmenistan, Azerbaijan
B) Russia, China, Mongolia, Iran, Afghanistan
C) Turkey, Syria, Iraq, Iran
D) Ukraine, Romania, Bulgaria, Greece
Answer: A
13. The Aral Sea is shrinking due to:
A) Earthquakes
B) Irrigation diversion of Amu Darya and Syr Darya
C) Volcanic eruption
D) Global warming only
Answer: B
14. The largest lake in Europe is:
A) Lake Geneva
B) Lake Ladoga
C) Lake Baikal
D) Lake Constance
Answer: B
Explanation: Lake Ladoga (17,700 sq. km) in Russia is Europe’s largest freshwater lake.
15. Lake Onega is located in:
A) Russia
B) Ukraine
C) Poland
D) Belarus
Answer: A
16. Lake Geneva lies between:
A) Germany and Austria
B) France and Switzerland
C) Italy and Slovenia
D) Spain and Portugal
Answer: B
17. Lake Constance is bordered by:
A) Germany, Austria, Switzerland
B) France, Italy, Spain
C) Norway, Sweden, Finland
D) Poland, Czechia, Slovakia
Answer: A
18. The deepest lake in Europe is:
A) Lake Constance
B) Lake Geneva
C) Lake Hornindalsvatnet (Norway)
D) Lake Ladoga
Answer: C
Explanation: Hornindalsvatnet (514 m) is Europe’s deepest lake.
19. The largest glacial lake in Europe is:
A) Lake Constance
B) Lake Geneva
C) Lake Ladoga
D) Lake Vänern
Answer: B
20. The largest lake in Sweden is:
A) Lake Vänern
B) Lake Vättern
C) Lake Mälaren
D) Lake Torneträsk
Answer: A
Explanation: Vänern (~5,650 sq. km) is Sweden’s largest lake.
21. Lake Peipus is shared by:
A) Russia and Estonia
B) Germany and Poland
C) Sweden and Norway
D) Finland and Russia
Answer: A
22. The Neusiedler See is located in:
A) Austria and Hungary
B) France and Switzerland
C) Italy and Slovenia
D) Poland and Belarus
Answer: A
23. The Prespa Lakes are shared by:
A) Albania, Greece, North Macedonia
B) Austria, Switzerland, Germany
C) Poland, Czechia, Slovakia
D) France, Spain, Portugal
Answer: A
24. Which lake is known for Venice’s lagoon system?
A) Lake Garda
B) Lake Maggiore
C) Lake Balaton
D) Venetian Lagoon
Answer: D
25. The largest lake in the British Isles is:
A) Loch Lomond
B) Loch Ness
C) Lough Neagh
D) Loch Tay
Answer: C
Explanation: Lough Neagh (Northern Ireland) is the largest by area in the British Isles.
26. The deepest lake in the world is:
A) Lake Tanganyika
B) Lake Baikal
C) Lake Superior
D) Dead Sea
Answer: B
Explanation: Lake Baikal (Siberia, Russia) is the world’s deepest lake (1,642 m) and holds ~20% of Earth’s unfrozen freshwater.
27. Lake Baikal is located in:
A) China
B) Mongolia
C) Russia (Siberia)
D) Kazakhstan
Answer: C
Explanation: It lies in southern Siberia, east of Irkutsk.
28. Which lake is the oldest freshwater lake in the world?
A) Lake Superior
B) Lake Baikal
C) Lake Victoria
D) Lake Tanganyika
Answer: B
Explanation: Lake Baikal is estimated to be 25–30 million years old.
29. The Aral Sea is located between:
A) Kazakhstan and Uzbekistan
B) Russia and Mongolia
C) Afghanistan and Turkmenistan
D) Iran and Iraq
Answer: A
Explanation: Once the world’s 4th largest lake, it has shrunk drastically due to irrigation diversions.
30. Which major rivers originally fed the Aral Sea?
A) Volga and Don
B) Amu Darya and Syr Darya
C) Ob and Yenisei
D) Indus and Ganga
Answer: B
31. The Caspian Sea is technically classified as:
A) Ocean bay
B) Largest inland salt lake
C) Freshwater lake
D) River delta
Answer: B
Explanation: It is the world’s largest enclosed inland water body (~371,000 sq. km).
32. The Dead Sea is famous for:
A) Being the deepest lake in the world
B) Being the saltiest large water body
C) Being the largest freshwater lake
D) Being in Central Asia
Answer: B
Explanation: Dead Sea (~34% salinity) is one of the saltiest lakes on Earth.
33. The Dead Sea lies between:
A) Israel and Lebanon
B) Israel and Jordan
C) Iraq and Syria
D) Turkey and Iran
Answer: B
Explanation: Shared between Israel and Jordan, with West Bank territory to the west.
34. Which lake lies at the lowest point on Earth’s land surface?
A) Lake Baikal
B) Dead Sea
C) Lake Van
D) Lake Issyk-Kul
Answer: B
Explanation: The Dead Sea’s surface is ~430 m below sea level, Earth’s lowest exposed point.
35. Lake Issyk-Kul is located in:
A) Kazakhstan
B) Kyrgyzstan
C) Uzbekistan
D) Tajikistan
Answer: B
Explanation: Issyk-Kul, a saline lake in Kyrgyzstan, is the 10th largest lake in the world by volume.
36. Lake Balkhash is unique because:
A) It is the deepest lake in the world
B) It has fresh water in one part and saline water in another
C) It is the world’s largest manmade lake
D) It lies below sea level
Answer: B
Explanation: In Kazakhstan, Balkhash has freshwater in the west and saline water in the east.
37. Lake Van, the largest lake in Turkey, is:
A) Freshwater
B) Saltwater (soda lake)
C) Glacier-fed
D) Artificial
Answer: B
Explanation: Lake Van is a saline soda lake in eastern Turkey.
38. Lake Urmia, once the largest in the Middle East, is shrinking due to:
A) Earthquakes
B) Dams and irrigation
C) Volcanic eruptions
D) Ice melting
Answer: B
Explanation: Lake Urmia in Iran has drastically reduced due to water diversion projects.
39. The largest freshwater lake in China is:
A) Lake Poyang
B) Lake Taihu
C) Lake Qinghai
D) Lake Dongting
Answer: A
Explanation: Lake Poyang (Jiangxi Province) is China’s largest freshwater lake.
40. Lake Qinghai is unique because:
A) It is saline despite being inland
B) It is the deepest in Asia
C) It is the largest freshwater in China
D) It flows into the Pacific
Answer: A
Explanation: Lake Qinghai (Koko Nor) is a saline, endorheic lake in Qinghai Province.
41. Lake Namtso (Tibet) is known for:
A) Largest saltwater lake in Tibet
B) Freshwater only
C) Being below sea level
D) Volcanic origin
Answer: A
Explanation: Namtso (4,718 m altitude) is one of the highest large salt lakes in the world.
42. Pangong Tso is shared between:
A) India and Pakistan
B) India and China
C) India and Nepal
D) India and Bhutan
Answer: B
Explanation: Located in Ladakh (India) and Tibet (China), ~60% lies in China.
43. Wular Lake in Jammu & Kashmir is:
A) Largest freshwater lake in India
B) Largest saline lake in India
C) Crater lake
D) Artificial
Answer: A
Explanation: Wular, formed by tectonic activity, is India’s largest freshwater lake.
44. The largest saline lake in India is:
A) Wular Lake
B) Sambhar Lake
C) Chilika Lake
D) Loktak Lake
Answer: B
Explanation: Sambhar Lake in Rajasthan is India’s largest saline lake, used for salt production.
45. Chilika Lake in Odisha is famous for:
A) Being a freshwater lake
B) Largest brackish water lagoon in India
C) Origin of Ganga
D) Volcanic lake
Answer: B
Explanation: Chilika (~1,100 sq. km) is Asia’s largest brackish water lagoon, famous for migratory birds.
46. Loktak Lake in Manipur is famous for:
A) Floating islands (phumdis)
B) Volcanic origin
C) Crater lake
D) Largest in Rajasthan
Answer: A
Explanation: Loktak Lake has floating biomass islands, supporting Keibul Lamjao National Park.
47. Dal Lake in Srinagar is known for:
A) Salt mining
B) Houseboats and tourism
C) Volcanic eruptions
D) Being below sea level
Answer: B
Explanation: Dal Lake is a major tourist attraction with shikaras and houseboats.
48. Tsomgo (Changu) Lake is located in:
A) Sikkim, India
B) Tibet, China
C) Nepal
D) Bhutan
Answer: A
Explanation: A glacial lake at 3,753 m altitude in East Sikkim.
49. Mansarovar Lake is sacred to:
A) Hindus, Buddhists, Jains, Bon religion
B) Only Hindus
C) Only Buddhists
D) Only Christians
Answer: A
Explanation: Lake Mansarovar (Tibet) is a holy site for multiple religions.
50. Which lake is located at the highest altitude?
A) Titicaca
B) Namtso
C) Ojos del Salado Crater Lake
D) Baikal
Answer: C
Explanation: Ojos del Salado (Chile–Argentina) crater lake (~6,390 m) is the world’s highest lake, though small.
51. The largest group of freshwater lakes in the world is:
A) African Rift Lakes
B) Canadian Shield Lakes
C) Great Lakes of North America
D) Scandinavian Lakes
Answer: C
Explanation: The Great Lakes (Superior, Michigan, Huron, Erie, Ontario) form the largest freshwater system by area.
52. Which of the Great Lakes is the largest?
A) Lake Erie
B) Lake Superior
C) Lake Huron
D) Lake Michigan
Answer: B
Explanation: Lake Superior (82,100 sq. km) is the largest freshwater lake in the world by surface area.
53. The only Great Lake entirely within the USA is:
A) Lake Ontario
B) Lake Erie
C) Lake Huron
D) Lake Michigan
Answer: D
Explanation: Lake Michigan lies completely within the United States.
54. The Great Lakes connect to the Atlantic Ocean via:
A) Mississippi River
B) Hudson River
C) St. Lawrence River
D) Columbia River
Answer: C
Explanation: The St. Lawrence Seaway links the Great Lakes to the Atlantic.
55. Niagara Falls lies between which two Great Lakes?
A) Superior and Huron
B) Huron and Michigan
C) Erie and Ontario
D) Michigan and Superior
Answer: C
Explanation: Niagara River connects Lake Erie to Lake Ontario, creating Niagara Falls.
56. Lake Erie is known for:
A) Being the deepest of the Great Lakes
B) Being the shallowest Great Lake
C) Being entirely in Canada
D) Having no outlet
Answer: B
Explanation: Erie is the shallowest Great Lake, making it warmer and biologically productive.
57. The deepest of the Great Lakes is:
A) Superior
B) Michigan
C) Huron
D) Ontario
Answer: A
Explanation: Lake Superior is the deepest, with a maximum depth of 406 m.
58. Lake Ontario drains into:
A) Atlantic Ocean via St. Lawrence River
B) Gulf of Mexico
C) Hudson Bay
D) Pacific Ocean
Answer: A
59. Lake Titicaca is famous for being:
A) The largest lake in the world
B) The highest navigable lake in the world
C) The deepest lake in the world
D) The largest artificial lake
Answer: B
Explanation: Lake Titicaca (3,812 m altitude) on Peru–Bolivia border is the world’s highest navigable lake.
60. Lake Titicaca drains into:
A) Amazon Basin
B) Orinoco Basin
C) Altiplano Basin (via Desaguadero River)
D) Pacific Ocean
Answer: C
Explanation: It drains into the Altiplano basin through the Desaguadero River.
61. The largest lake in South America is:
A) Lake Titicaca
B) Lake Maracaibo
C) Lake Poopó
D) Lake Nicaragua
Answer: B
Explanation: Lake Maracaibo (Venezuela, ~13,200 sq. km) is the largest South American lake, though technically a tidal bay.
62. Which lake is famous for its floating reed islands?
A) Lake Superior
B) Lake Titicaca
C) Lake Erie
D) Lake Maracaibo
Answer: B
Explanation: The Uros people of Peru–Bolivia live on floating reed islands on Titicaca.
63. Lake Nicaragua is connected to the Caribbean Sea by:
A) Amazon River
B) San Juan River
C) Orinoco River
D) Magdalena River
Answer: B
Explanation: The San Juan River flows east from Lake Nicaragua to the Caribbean.
64. Lake Nicaragua is unique because:
A) It has freshwater sharks
B) It is the world’s deepest lake
C) It is completely saline
D) It lies below sea level
Answer: A
Explanation: Bull sharks and sawfish inhabit Lake Nicaragua despite being freshwater.
65. The largest natural lake in the USA (outside Great Lakes) is:
A) Lake Okeechobee
B) Great Salt Lake
C) Lake Tahoe
D) Lake Iliamna
Answer: D
Explanation: Lake Iliamna (Alaska, ~2,600 sq. km) is the largest natural freshwater lake in the USA outside the Great Lakes.
66. The Great Salt Lake is located in:
A) Colorado
B) Utah
C) Nevada
D) Arizona
Answer: B
Explanation: Great Salt Lake (Utah) is a large saltwater lake with no outlet.
67. Which is the largest freshwater lake in Canada?
A) Great Bear Lake
B) Great Slave Lake
C) Lake Winnipeg
D) Lake Athabasca
Answer: A
Explanation: Great Bear Lake (~31,000 sq. km) in Northwest Territories is Canada’s largest.
68. The deepest lake in North America is:
A) Great Slave Lake
B) Great Bear Lake
C) Lake Ontario
D) Lake Tahoe
Answer: A
Explanation: Great Slave Lake (614 m) in Canada is the deepest lake in North America.
69. Lake Winnipeg is located in:
A) Alberta
B) Manitoba
C) Ontario
D) Saskatchewan
Answer: B
Explanation: Lake Winnipeg is a large but shallow freshwater lake in Manitoba, Canada.
70. Lake Tahoe is shared by:
A) California and Nevada
B) California and Arizona
C) Colorado and Utah
D) Washington and Oregon
Answer: A
Explanation: Lake Tahoe is a deep freshwater alpine lake on the California–Nevada border.
71. Crater Lake, the deepest in the USA, was formed by:
A) Earthquake
B) Volcanic eruption (Mount Mazama)
C) Meteor impact
D) Glacier activity
Answer: B
Explanation: Crater Lake (Oregon) was formed by collapse of Mount Mazama’s caldera.
72. The Salton Sea is located in:
A) Nevada
B) Arizona
C) California
D) Texas
Answer: C
Explanation: The Salton Sea is a saline, endorheic lake in California.
73. Lake Poopó (Bolivia) is known for:
A) Being permanently deep
B) Frequently drying up
C) Being a volcanic crater
D) Being the largest in South America
Answer: B
Explanation: Lake Poopó often dries up due to evaporation and climate variation.
74. Lake Chapala, the largest lake in Mexico, lies in:
A) Jalisco and Michoacán states
B) Sonora
C) Chiapas
D) Yucatán Peninsula
Answer: A
Explanation: Lake Chapala lies between Jalisco and Michoacán, near Guadalajara.
75. Which North American lake is famous for its clarity and blue water?
A) Lake Erie
B) Lake Superior
C) Lake Tahoe
D) Lake Winnipeg
Answer: C
Explanation: Lake Tahoe is known for its deep blue color and clarity, a popular tourist site.
76. The largest lake in Australia is:
A) Lake Eyre (Kati Thanda)
B) Lake Torrens
C) Lake Gairdner
D) Lake George
Answer: A
Explanation: Lake Eyre (Kati Thanda) is a large endorheic (inland drainage) salt lake in South Australia. It fills occasionally after heavy rains.
77. Lake Eyre lies:
A) Below sea level
B) At the highest point in Australia
C) As part of Great Dividing Range
D) Along Murray–Darling Basin
Answer: A
Explanation: Lake Eyre lies ~15 m below sea level, Australia’s lowest natural point.
78. The largest natural freshwater lake in Australia (Tasmania) is:
A) Lake Torrens
B) Lake Macquarie
C) Great Lake
D) Lake Eyre
Answer: C
Explanation: Tasmania’s Great Lake is the largest natural freshwater body in Australia.
79. Lake Argyle (Western Australia) is:
A) Natural glacial lake
B) Largest man-made lake in Australia
C) Saltwater lagoon
D) Volcanic crater lake
Answer: B
Explanation: Lake Argyle, formed by the Ord River Dam, is Australia’s largest artificial lake.
80. Lake Burley Griffin is an artificial lake located in:
A) Sydney
B) Canberra
C) Melbourne
D) Perth
Answer: B
Explanation: Created in 1963, it is a central feature of Australia’s capital city, Canberra.
81. Lake Macquarie, Australia’s largest coastal lagoon, is near:
A) Sydney, New South Wales
B) Perth, WA
C) Darwin, NT
D) Brisbane, QLD
Answer: A
Explanation: Located north of Sydney, Lake Macquarie is a large coastal lagoon.
82. The world’s largest tropical tidal lagoon is:
A) Chilika Lake
B) Coorong Lagoon
C) Lake Eyre
D) Carpentaria Lagoon
Answer: B
Explanation: South Australia’s Coorong Lagoon is noted for unique tidal ecosystem.
83. The largest lake in New Zealand is:
A) Lake Wanaka
B) Lake Wakatipu
C) Lake Taupō
D) Lake Manapouri
Answer: C
Explanation: Lake Taupō (~616 sq. km) on North Island is NZ’s largest lake, in a volcanic caldera.
84. Which is the deepest lake in New Zealand?
A) Lake Taupō
B) Lake Hauroko
C) Lake Wanaka
D) Lake Rotorua
Answer: B
Explanation: Lake Hauroko (462 m) in South Island is New Zealand’s deepest lake.
85. The largest subglacial lake in Antarctica is:
A) Lake Vostok
B) Lake Whillans
C) Lake Mercer
D) Lake Bonney
Answer: A
Explanation: Lake Vostok lies beneath ~4 km of ice, one of Earth’s largest subglacial lakes.
86. Lake Vostok in Antarctica remains liquid because of:
A) High salinity
B) Geothermal heat and pressure from overlying ice
C) Volcanic eruptions
D) Sea water inflow
Answer: B
Explanation: Despite freezing conditions, geothermal heat and ice pressure keep it liquid.
87. The largest lake in the Arctic is:
A) Great Bear Lake
B) Lake Taymyr
C) Lake Ladoga
D) Lake Onega
Answer: B
Explanation: Lake Taymyr (Russia) is the largest natural lake entirely within the Arctic Circle.
88. Lake Hazen, the world’s largest lake north of the Arctic Circle, is located in:
A) Russia
B) Canada (Ellesmere Island)
C) Greenland
D) Norway
Answer: B
Explanation: Lake Hazen is on Ellesmere Island, Nunavut, Canada.
89. Lake Superior (North America) is the:
A) Largest freshwater lake by volume
B) Largest freshwater lake by surface area
C) Deepest lake in the world
D) Oldest freshwater lake
Answer: B
Explanation: Superior (~82,100 sq. km) is the largest freshwater lake by surface area.
90. Which lake has the highest salinity among large lakes?
A) Great Salt Lake (USA)
B) Caspian Sea
C) Dead Sea
D) Lake Urmia
Answer: C
Explanation: The Dead Sea has ~34% salinity, one of the highest in the world.
91. Which is the largest man-made lake in the world by area?
A) Lake Argyle
B) Lake Volta
C) Lake Mead
D) Lake Kariba
Answer: B
Explanation: Lake Volta (Ghana) is the world’s largest reservoir by surface area.
92. Lake Kariba (Zambia–Zimbabwe) is the largest man-made lake by:
A) Surface area
B) Volume
C) Depth
D) Salinity
Answer: B
Explanation: Lake Kariba has the largest volume of any artificial reservoir (~185 km³).
93. Lake Mead in the USA was created by:
A) Grand Coulee Dam
B) Hoover Dam
C) Glen Canyon Dam
D) Aswan Dam
Answer: B
Explanation: Hoover Dam (Colorado River) created Lake Mead, a major water source for southwestern USA.
94. The Salton Sea in California is:
A) Freshwater
B) Saltwater endorheic lake
C) Glacier-fed
D) Volcanic
Answer: B
Explanation: It is a saline, closed-basin lake created by flooding of the Colorado River in 1905.
95. Which lake is called the “Pearl of Siberia”?
A) Lake Balkhash
B) Lake Baikal
C) Lake Ladoga
D) Lake Onega
Answer: B
Explanation: Lake Baikal is called the “Pearl of Siberia” due to its biodiversity and scenic beauty.
96. The largest alpine lake in the world is:
A) Lake Titicaca
B) Lake Tahoe
C) Lake Victoria
D) Lake Tanganyika
Answer: A
Explanation: Titicaca (3,812 m altitude, Peru–Bolivia) is the largest alpine (high-altitude) lake.
97. Which is the highest navigable lake in the world?
A) Lake Namtso
B) Lake Titicaca
C) Lake Ojos del Salado
D) Lake Qinghai
Answer: B
Explanation: Titicaca is the highest navigable lake (~3,812 m).
98. Which African lake crosses the equator?
A) Lake Victoria
B) Lake Tanganyika
C) Lake Malawi
D) Lake Albert
Answer: A
Explanation: Lake Victoria lies astride the equator.
99. Which lake was declared a UNESCO World Heritage Site for unique biodiversity?
A) Lake Baikal
B) Lake Superior
C) Lake Titicaca
D) Lake Tanganyika
Answer: A
Explanation: Baikal (Russia) was listed as a UNESCO site in 1996.
100. Which statement is TRUE about lakes?
A) All lakes are freshwater
B) All lakes flow into the sea
C) Some lakes are endorheic (no outlet)
D) Lakes exist only in tropical zones
Answer: C
Explanation: Endorheic lakes (e.g., Caspian, Dead Sea, Eyre) have no outflow to seas or oceans.