1. A strait is defined as:
A) A large inland sea
B) A narrow waterway connecting two larger water bodies
C) A wide river mouth
D) A man-made canal
Answer: B
Explanation: A strait is a naturally formed narrow passage connecting two seas or oceans.
2. The Strait of Gibraltar connects:
A) Mediterranean Sea and Red Sea
B) Black Sea and Caspian Sea
C) Mediterranean Sea and Atlantic Ocean
D) Red Sea and Arabian Sea
Answer: C
Explanation: It separates Spain (Europe) and Morocco (Africa).
3. The Bosporus Strait connects:
A) Mediterranean and Atlantic
B) Black Sea and Sea of Marmara
C) Red Sea and Arabian Sea
D) Adriatic and Aegean Seas
Answer: B
Explanation: Bosporus in Turkey connects Black Sea → Sea of Marmara → Mediterranean.
4. The Dardanelles Strait connects:
A) Red Sea and Gulf of Aden
B) Sea of Marmara and Aegean Sea
C) Caspian and Black Sea
D) Mediterranean and Atlantic
Answer: B
Explanation: Dardanelles links Sea of Marmara to Aegean Sea, vital for Turkey.
5. The Strait of Hormuz connects:
A) Persian Gulf and Gulf of Oman
B) Black Sea and Aegean Sea
C) Mediterranean and Atlantic
D) Caspian Sea and Aral Sea
Answer: A
Explanation: Strait of Hormuz is a key chokepoint for global oil trade.
6. The Bab-el-Mandeb Strait connects:
A) Red Sea and Gulf of Aden
B) Mediterranean and Black Sea
C) Caspian and Aral Sea
D) Atlantic and Indian Ocean
Answer: A
Explanation: Between Djibouti/Yemen, it links Red Sea with Arabian Sea.
7. The Strait of Malacca connects:
A) Pacific Ocean and Atlantic Ocean
B) Indian Ocean and Pacific Ocean
C) Bay of Bengal and South China Sea
D) Caspian Sea and Aral Sea
Answer: C
Explanation: Malacca Strait lies between Malaysia and Indonesia; busiest trade route in Asia.
8. The Sunda Strait connects:
A) Java Sea and Indian Ocean
B) Red Sea and Mediterranean
C) Black Sea and Baltic Sea
D) Gulf of Mexico and Caribbean
Answer: A
Explanation: Sunda Strait lies between Java and Sumatra, Indonesia.
9. The Lombok Strait separates:
A) Java and Sumatra
B) Bali and Lombok Islands
C) Australia and Papua
D) Borneo and Philippines
Answer: B
Explanation: Lombok Strait is between Bali and Lombok Islands, an alternative to Malacca route.
10. The Torres Strait separates:
A) Australia and New Zealand
B) Australia and Papua New Guinea
C) India and Sri Lanka
D) Africa and Europe
Answer: B
Explanation: Torres Strait lies between Cape York Peninsula (Australia) and Papua New Guinea.
11. The Bering Strait separates:
A) Greenland and Canada
B) Russia and Alaska (USA)
C) Iceland and Norway
D) India and Sri Lanka
Answer: B
Explanation: Bering Strait connects Bering Sea with Arctic Ocean.
12. The Palk Strait lies between:
A) India and Sri Lanka
B) India and Maldives
C) India and Myanmar
D) India and Indonesia
Answer: A
Explanation: Palk Strait connects Bay of Bengal and Gulf of Mannar.
13. The Mozambique Channel is often mistaken as a strait. It lies between:
A) India and Sri Lanka
B) Madagascar and Mozambique
C) Greenland and Canada
D) Spain and Morocco
Answer: B
Explanation: Mozambique Channel separates Madagascar and Mozambique, western Indian Ocean.
14. The Bashi Channel (often considered a strait) connects:
A) Indian Ocean and Pacific Ocean
B) South China Sea and Philippine Sea
C) Caspian Sea and Black Sea
D) Red Sea and Arabian Sea
Answer: B
Explanation: Bashi Channel lies between Taiwan and Philippines.
15. The Taiwan Strait separates:
A) Taiwan and China (mainland)
B) Taiwan and Japan
C) Taiwan and Philippines
D) Taiwan and Korea
Answer: A
Explanation: Taiwan Strait connects East China Sea with South China Sea.
16. The Strait of Dover (Pas de Calais) connects:
A) Atlantic Ocean and Mediterranean
B) English Channel and North Sea
C) Baltic Sea and Black Sea
D) Red Sea and Arabian Sea
Answer: B
Explanation: Strait of Dover separates England and France.
17. The Skagerrak Strait connects:
A) North Sea and Baltic Sea
B) Red Sea and Gulf of Aden
C) Mediterranean and Black Sea
D) Caspian Sea and Aral Sea
Answer: A
Explanation: Skagerrak (between Norway, Sweden, Denmark) links North Sea to Baltic Sea.
18. The Kattegat Strait lies between:
A) Denmark and Sweden
B) France and UK
C) India and Sri Lanka
D) Australia and Papua
Answer: A
Explanation: Kattegat lies between Denmark and Sweden, connects to Skagerrak.
19. The Bosporus Strait is controlled by which country?
A) Greece
B) Turkey
C) Russia
D) Bulgaria
Answer: B
Explanation: Both Bosporus and Dardanelles are Turkish-controlled straits.
20. The Sunda Strait is strategically important because:
A) It connects Mediterranean and Red Sea
B) It is an alternative to Malacca Strait
C) It links Black Sea and Aegean
D) It connects Atlantic and Arctic
Answer: B
Explanation: Sunda and Lombok Straits serve as alternative Asia–Pacific trade routes.
21. The Strait of Tartary separates:
A) Japan and Korea
B) Sakhalin Island and Russian mainland
C) China and Taiwan
D) Alaska and Canada
Answer: B
Explanation: Strait of Tartary lies between Sakhalin Island and Russia.
22. The Bonifacio Strait lies between:
A) Italy and France (Corsica and Sardinia)
B) Spain and Portugal
C) Greece and Turkey
D) Morocco and Spain
Answer: A
Explanation: Bonifacio Strait separates Corsica (France) and Sardinia (Italy).
23. The Cook Strait separates:
A) Australia and New Zealand
B) North and South Islands of New Zealand
C) New Zealand and Fiji
D) Tasmania and Australia
Answer: B
Explanation: Cook Strait lies between North and South Islands of New Zealand.
24. The Strait of Tartary connects:
A) Sea of Japan and Sea of Okhotsk
B) Caspian Sea and Black Sea
C) Red Sea and Arabian Sea
D) Indian Ocean and Atlantic
Answer: A
Explanation: Strait of Tartary links Sea of Japan and Sea of Okhotsk.
25. The Strait of Kerch connects:
A) Black Sea and Sea of Azov
B) Caspian Sea and Aral Sea
C) Red Sea and Mediterranean
D) North Sea and Baltic Sea
Answer: A
Explanation: Kerch Strait lies between Crimea and Russia, linking Black Sea to Sea of Azov.
26. The Strait of Messina separates:
A) Italy and Greece
B) Sicily and mainland Italy
C) France and Spain
D) Turkey and Cyprus
Answer: B
Explanation: Strait of Messina lies between Sicily and Calabria (mainland Italy), connecting Tyrrhenian and Ionian Seas.
27. The Otranto Strait connects:
A) Adriatic Sea and Ionian Sea
B) Aegean Sea and Black Sea
C) Mediterranean Sea and Red Sea
D) Baltic Sea and North Sea
Answer: A
Explanation: Otranto Strait (between Albania and Italy) links Adriatic Sea with Ionian Sea.
28. The Strait of Bonifacio separates:
A) Sardinia and Corsica
B) Sicily and Malta
C) Spain and Morocco
D) Greece and Turkey
Answer: A
Explanation: Bonifacio Strait separates Sardinia (Italy) from Corsica (France).
29. The Strait of Sicily lies between:
A) Sicily and Tunisia
B) Sicily and Sardinia
C) Italy and Greece
D) Spain and Portugal
Answer: A
Explanation: Strait of Sicily connects Tyrrhenian and Mediterranean seas, between Sicily and Tunisia.
30. The Strait of Dover (Pas de Calais) lies between:
A) France and Germany
B) UK and France
C) Spain and Portugal
D) Italy and Greece
Answer: B
Explanation: Strait of Dover is the narrowest part of the English Channel between UK and France.
31. The Kattegat Strait connects:
A) Baltic Sea and North Sea (via Skagerrak)
B) Adriatic and Ionian Seas
C) Red Sea and Arabian Sea
D) Caspian and Black Sea
Answer: A
Explanation: Kattegat, between Denmark and Sweden, connects Baltic Sea to Skagerrak and North Sea.
32. The Skagerrak Strait lies between:
A) Norway, Sweden, Denmark
B) UK and France
C) Italy and Albania
D) Greece and Turkey
Answer: A
Explanation: Skagerrak is a strait running between Norway, Sweden, and Denmark, linking North Sea to Kattegat.
33. The Øresund Strait separates:
A) Sweden and Denmark
B) Norway and UK
C) France and Italy
D) Spain and Morocco
Answer: A
Explanation: Øresund (The Sound) separates Denmark and Sweden, connecting Kattegat to Baltic Sea.
34. The Bosporus Strait separates:
A) Asia and Africa
B) Asia and Europe
C) Africa and Europe
D) Europe and South America
Answer: B
Explanation: Bosporus divides Istanbul into European and Asian parts.
35. The Dardanelles Strait was historically known as:
A) Hellespont
B) Bosporus
C) Isthmus of Corinth
D) Levant
Answer: A
Explanation: Dardanelles was called Hellespont in ancient Greek history (e.g., Trojan War).
36. The Strait of Kerch connects:
A) Mediterranean and Black Sea
B) Black Sea and Sea of Azov
C) North Sea and Baltic Sea
D) Adriatic and Ionian Seas
Answer: B
Explanation: Kerch Strait lies between Crimea and Russia, linking Black Sea and Sea of Azov.
37. The Strait of Kertch became geopolitically important in:
A) Cold War
B) Russia–Ukraine conflict (2014–present)
C) World War I
D) American Revolution
Answer: B
Explanation: Kerch Strait bridge (Crimea) became disputed after Russia annexed Crimea in 2014.
38. The Strait of Corinth separates:
A) Peloponnesus from mainland Greece
B) Italy and Sicily
C) Turkey and Cyprus
D) France and Spain
Answer: A
Explanation: Corinth Strait (actually Corinth Canal) cuts through Greece to link Aegean and Ionian Seas.
39. The Strait of Oresund (The Sound) connects:
A) Mediterranean and Black Sea
B) Baltic Sea and Kattegat
C) Red Sea and Arabian Sea
D) Adriatic and Aegean
Answer: B
Explanation: Øresund connects Baltic Sea to Kattegat between Denmark and Sweden.
40. Which strait separates Europe and Africa?
A) Bab-el-Mandeb
B) Strait of Gibraltar
C) Strait of Messina
D) Skagerrak
Answer: B
Explanation: Gibraltar Strait separates Spain (Europe) and Morocco (Africa).
41. The Strait of Sicilian Channel is vital because:
A) It is between Sicily and Tunisia
B) It connects Mediterranean east and west basins
C) It is a key Europe–Africa maritime route
D) All of the above
Answer: D
Explanation: Strait of Sicily is strategically located between Europe and Africa.
42. The Strait of Otranto is significant for:
A) Linking Adriatic and Ionian Seas
B) Trade between Italy and Albania
C) NATO naval security
D) All of the above
Answer: D
Explanation: Otranto Strait is geopolitically important for Mediterranean security.
43. The Strait of Bonifacio is dangerous for navigation because of:
A) Narrowness and strong winds
B) Volcanoes
C) Icebergs
D) Oil spills
Answer: A
Explanation: Bonifacio Strait is narrow and windy, posing hazards for ships.
44. The Strait of Dover is the busiest international seaway because:
A) It links Mediterranean and Atlantic
B) It lies between France and UK, with dense shipping traffic
C) It is shallow and narrow
D) It connects Red Sea and Indian Ocean
Answer: B
Explanation: Dover is the world’s busiest strait for shipping and ferries.
45. The Strait of Oresund (Denmark–Sweden) is famous for:
A) Oresund Bridge
B) Coral reefs
C) Oil fields
D) Ancient ruins
Answer: A
Explanation: Øresund Bridge is a major link between Denmark and Sweden.
46. Which strait separates Iceland and Greenland?
A) Davis Strait
B) Denmark Strait
C) Bering Strait
D) Hudson Strait
Answer: B
Explanation: Denmark Strait lies between Greenland and Iceland.
47. Which strait connects the Baltic Sea to the North Sea?
A) Bosporus Strait
B) Strait of Dover
C) Skagerrak & Kattegat system
D) Strait of Sicily
Answer: C
Explanation: Baltic Sea → Kattegat → Skagerrak → North Sea.
48. The Strait of Dover is also called:
A) Calais Strait
B) Pas de Calais
C) Anglo Strait
D) Channel Strait
Answer: B
Explanation: In French, Dover Strait is known as Pas de Calais.
49. Which strait separates Sardinia and Corsica?
A) Strait of Bonifacio
B) Strait of Sicily
C) Strait of Messina
D) Strait of Otranto
Answer: A
Explanation: Bonifacio Strait is between Sardinia (Italy) and Corsica (France).
50. Which strait is connected with the famous Battle of Lepanto (1571)?
A) Strait of Messina
B) Otranto Strait
C) Dardanelles Strait
D) Strait of Gibraltar
Answer: B
Explanation: The Battle of Lepanto was fought in the Gulf of Patras, near Otranto Strait, between Holy League and Ottoman Empire.
51. The Palk Strait connects:
A) Bay of Bengal and Gulf of Mannar
B) Red Sea and Mediterranean Sea
C) Arabian Sea and Bay of Bengal
D) Caspian Sea and Aral Sea
Answer: A
Explanation: Palk Strait lies between India and Sri Lanka, connecting Bay of Bengal with Gulf of Mannar.
52. The Malacca Strait connects:
A) Red Sea and Arabian Sea
B) Bay of Bengal and South China Sea
C) Mediterranean and Atlantic
D) Black Sea and Aegean
Answer: B
Explanation: Malacca Strait lies between Malaysia and Sumatra (Indonesia), a key Asia–Europe trade route.
53. The Sunda Strait connects:
A) Java Sea and Indian Ocean
B) South China Sea and Bay of Bengal
C) Persian Gulf and Arabian Sea
D) Mediterranean and Black Sea
Answer: A
Explanation: Sunda Strait lies between Java and Sumatra islands in Indonesia.
54. The Lombok Strait separates:
A) Java and Sumatra
B) Bali and Lombok Islands
C) Sri Lanka and Maldives
D) Japan and Korea
Answer: B
Explanation: Lombok Strait is between Bali and Lombok, an alternative deep-water route to Malacca Strait.
55. The Makassar Strait lies between:
A) Borneo and Sulawesi (Indonesia)
B) Sumatra and Java
C) India and Sri Lanka
D) China and Taiwan
Answer: A
Explanation: Makassar Strait separates Borneo and Sulawesi in Indonesia.
56. The Taiwan Strait separates:
A) Taiwan and Japan
B) Taiwan and China (mainland)
C) Taiwan and Philippines
D) Taiwan and Korea
Answer: B
Explanation: Taiwan Strait links East China Sea and South China Sea, separating Taiwan and mainland China.
57. The Bashi Channel connects:
A) South China Sea and Philippine Sea
B) Caspian Sea and Black Sea
C) Arabian Sea and Red Sea
D) Bay of Bengal and Andaman Sea
Answer: A
Explanation: Bashi Channel lies between Taiwan and Philippines, linking South China Sea to Pacific.
58. The Luzon Strait lies between:
A) Taiwan and Philippines
B) China and Japan
C) Korea and Japan
D) India and Sri Lanka
Answer: A
Explanation: Luzon Strait separates Taiwan and Luzon (Philippines).
59. The Tsugaru Strait lies between:
A) Hokkaido and Honshu (Japan)
B) Honshu and Kyushu
C) Japan and Korea
D) Japan and China
Answer: A
Explanation: Tsugaru Strait separates Honshu and Hokkaido islands of Japan.
60. The Korea Strait lies between:
A) Japan and Korea Peninsula
B) Japan and Taiwan
C) Japan and China
D) Korea and China
Answer: A
Explanation: Korea Strait links East China Sea and Sea of Japan, between Japan and Korea.
61. The Miyako Strait is located between:
A) Japan’s Okinawa and Miyako Islands
B) Taiwan and Philippines
C) Korea and Japan
D) India and Maldives
Answer: A
Explanation: Miyako Strait lies in Okinawa Prefecture (Japan), used as a naval passage.
62. The Singapore Strait connects:
A) Andaman Sea and Bay of Bengal
B) Malacca Strait and South China Sea
C) Java Sea and Pacific Ocean
D) Arabian Sea and Red Sea
Answer: B
Explanation: Singapore Strait lies south of Singapore, linking Malacca Strait with South China Sea.
63. The Ombai–Wetar Straits are important because they:
A) Connect Indonesia with Pacific
B) Provide alternative deep-water routes to Indian Ocean
C) Separate Borneo and Sulawesi
D) Connect Caspian and Black Sea
Answer: B
Explanation: Ombai and Wetar Straits (Indonesia) provide deep-water passages from Pacific to Indian Ocean, bypassing Malacca.
64. The Babuyan Channel lies between:
A) Taiwan and Philippines
B) Philippines’ Luzon and Babuyan Islands
C) Japan and Korea
D) India and Sri Lanka
Answer: B
Explanation: Babuyan Channel separates Luzon and Babuyan Islands in northern Philippines.
65. The Karimata Strait connects:
A) South China Sea and Java Sea
B) Red Sea and Gulf of Aden
C) Caspian Sea and Aral Sea
D) Black Sea and Mediterranean
Answer: A
Explanation: Karimata Strait separates Sumatra and Borneo, linking South China Sea and Java Sea.
66. The Sunda Strait is vulnerable to tsunamis due to:
A) Nearby volcanoes like Krakatoa
B) Tectonic plate collision
C) Both A and B
D) None
Answer: C
Explanation: Sunda Strait is prone to volcanic activity (Krakatoa eruption, 1883) and earthquakes.
67. The Bab-el-Mandeb Strait lies between:
A) Djibouti/Eritrea and Yemen
B) India and Sri Lanka
C) Greece and Turkey
D) Morocco and Spain
Answer: A
Explanation: Bab-el-Mandeb links Red Sea and Gulf of Aden, between Africa and Arabian Peninsula.
68. The Nine Degree Channel lies between:
A) Lakshadweep Islands (Kalpeni and Suheli Par)
B) India and Sri Lanka
C) Maldives and Sri Lanka
D) Andaman and Nicobar Islands
Answer: A
Explanation: Nine Degree Channel separates Lakshadweep islands; key for Indian Ocean shipping.
69. The Ten Degree Channel separates:
A) Andaman and Nicobar Islands
B) Sri Lanka and India
C) Java and Sumatra
D) Maldives and Lakshadweep
Answer: A
Explanation: Ten Degree Channel separates Andaman and Nicobar groups of islands.
70. The Six Degree Channel is located between:
A) Indira Point (India) and Great Nicobar–Indonesia
B) Lakshadweep Islands
C) Taiwan and Philippines
D) Japan and Korea
Answer: A
Explanation: Six Degree Channel lies between Great Nicobar (India) and Aceh (Indonesia), a major shipping route.
71. The Strait of Hormuz connects:
A) Red Sea and Arabian Sea
B) Persian Gulf and Gulf of Oman
C) Bay of Bengal and Arabian Sea
D) Caspian and Black Sea
Answer: B
Explanation: Strait of Hormuz is a vital chokepoint for global oil transport.
72. The Sunda Strait separates:
A) Java and Sumatra
B) Bali and Lombok
C) India and Maldives
D) Korea and Japan
Answer: A
Explanation: Sunda Strait separates Java and Sumatra; important alternate trade route.
73. The Ombai Strait lies between:
A) Timor and Alor Islands (Indonesia)
B) Java and Sumatra
C) Taiwan and Philippines
D) Borneo and Sulawesi
Answer: A
Explanation: Ombai Strait connects Banda Sea to Savu Sea in Indonesia.
74. The Sunda, Lombok, and Makassar Straits are significant because:
A) They are part of alternative shipping lanes to Malacca
B) They connect Pacific and Indian Oceans
C) They are deep-water straits used by submarines
D) All of the above
Answer: D
Explanation: These Indonesian straits are crucial alternatives to Malacca, strategically important.
75. The Sunda Strait was the site of a major World War II naval battle between:
A) Japan and USA
B) Japan and Allied forces (Australia–Netherlands–USA)
C) UK and Germany
D) Russia and Turkey
Answer: B
Explanation: Battle of Sunda Strait (1942) was between Japanese and Allied navies.
76. The Bering Strait connects:
A) Atlantic and Indian Oceans
B) Pacific and Arctic Oceans
C) Indian and Southern Oceans
D) Atlantic and Pacific Oceans
Answer: B
Explanation: Bering Strait lies between Russia and Alaska, linking the Pacific (Bering Sea) with the Arctic (Chukchi Sea).
77. The Davis Strait lies between:
A) Greenland and Iceland
B) Greenland and Canada (Baffin Island)
C) Canada and Alaska
D) Iceland and Norway
Answer: B
Explanation: Davis Strait links Baffin Bay with the Labrador Sea, between Greenland and Baffin Island (Canada).
78. The Hudson Strait connects:
A) Hudson Bay and Labrador Sea
B) Baffin Bay and Arctic Ocean
C) Gulf of Mexico and Caribbean
D) Greenland and Iceland
Answer: A
Explanation: Hudson Strait is an outlet from Hudson Bay to Labrador Sea in northeastern Canada.
79. The Florida Strait separates:
A) USA and Canada
B) USA and Cuba
C) Mexico and Cuba
D) Cuba and Jamaica
Answer: B
Explanation: Florida Strait lies between Florida (USA) and Cuba, connecting Gulf of Mexico to Atlantic Ocean.
80. The Yucatán Channel connects:
A) Gulf of California and Pacific
B) Gulf of Mexico and Caribbean Sea
C) Caribbean and Atlantic directly
D) Pacific and Atlantic
Answer: B
Explanation: Yucatán Channel lies between Mexico’s Yucatán Peninsula and Cuba.
81. The Windward Passage lies between:
A) Cuba and Haiti
B) Haiti and Dominican Republic
C) Jamaica and Cuba
D) Puerto Rico and Haiti
Answer: A
Explanation: Windward Passage connects the Caribbean Sea and Atlantic between Cuba and Haiti.
82. The Mona Passage separates:
A) Cuba and Jamaica
B) Dominican Republic and Puerto Rico
C) Mexico and Cuba
D) Colombia and Panama
Answer: B
Explanation: Mona Passage lies between Dominican Republic (Hispaniola) and Puerto Rico.
83. The Magellan Strait connects:
A) Atlantic and Indian Oceans
B) Atlantic and Pacific Oceans
C) Caribbean and Gulf of Mexico
D) Pacific and Southern Oceans
Answer: B
Explanation: Magellan Strait in southern Chile is a natural passage between Atlantic and Pacific.
84. The Drake Passage lies between:
A) South America and Antarctica
B) Greenland and Canada
C) Asia and North America
D) Australia and New Zealand
Answer: A
Explanation: Drake Passage separates Cape Horn (Chile) from Antarctica, linking Atlantic and Pacific.
85. The Beagle Channel is located in:
A) Alaska
B) Southern Chile and Argentina (Tierra del Fuego)
C) Greenland
D) Iceland
Answer: B
Explanation: Beagle Channel is a navigable strait in Tierra del Fuego, near Cape Horn.
86. The Strait of Belle Isle separates:
A) Greenland and Iceland
B) Newfoundland and Labrador (Canada)
C) USA and Canada
D) Mexico and Cuba
Answer: B
Explanation: Belle Isle Strait lies between Newfoundland and Labrador, linking Gulf of St. Lawrence with Labrador Sea.
87. The Cook Strait separates:
A) Tasmania and Australia
B) North and South Islands of New Zealand
C) Australia and New Zealand
D) Fiji and Samoa
Answer: B
Explanation: Cook Strait separates North and South Islands of New Zealand.
88. The Torres Strait connects:
A) Pacific and Atlantic Oceans
B) Coral Sea and Arafura Sea
C) Bay of Bengal and Arabian Sea
D) Red Sea and Gulf of Aden
Answer: B
Explanation: Torres Strait lies between Australia and Papua New Guinea, linking Coral Sea and Arafura Sea.
89. The Denmark Strait lies between:
A) Canada and Greenland
B) Greenland and Iceland
C) Iceland and Norway
D) USA and Alaska
Answer: B
Explanation: Denmark Strait separates Greenland and Iceland, linking Arctic Ocean with North Atlantic.
90. The Fram Strait is located between:
A) Greenland and Svalbard (Norway)
B) Canada and Alaska
C) Russia and Alaska
D) Iceland and UK
Answer: A
Explanation: Fram Strait links Arctic Ocean with North Atlantic, between Greenland and Svalbard.
91. The McMurdo Sound in Antarctica is often considered strait-like because:
A) It connects Ross Sea with Southern Ocean
B) It is between ice shelves
C) It is a frozen water channel
D) All of the above
Answer: D
Explanation: McMurdo Sound is a frozen strait-like feature connecting Ross Sea with Southern Ocean.
92. The Northwest Passage is:
A) A canal
B) A shipping route through Arctic Canada connecting Atlantic and Pacific
C) A strait in the Caribbean
D) A trench in the Pacific
Answer: B
Explanation: The Northwest Passage runs through Canadian Arctic Archipelago, now navigable due to melting ice.
93. The Northeast Passage runs:
A) Around Greenland
B) Along northern coast of Russia, connecting Atlantic and Pacific
C) Between Africa and Asia
D) Around Antarctica
Answer: B
Explanation: Northeast Passage lies along Arctic Russia, shorter Europe–Asia route via Arctic.
94. The Nares Strait lies between:
A) Greenland and Canada (Ellesmere Island)
B) USA and Canada
C) Russia and Alaska
D) Iceland and Norway
Answer: A
Explanation: Nares Strait connects Baffin Bay with Arctic Ocean, between Greenland and Ellesmere Island.
95. Which strait connects the Caribbean Sea and Atlantic Ocean?
A) Florida Strait
B) Windward Passage
C) Mona Passage
D) All of the above
Answer: D
Explanation: Multiple straits (Florida Strait, Windward Passage, Mona Passage) connect Caribbean with Atlantic.
96. Which strait is strategically important for US–Cuba relations?
A) Yucatán Channel
B) Florida Strait
C) Mona Passage
D) Windward Passage
Answer: B
Explanation: Florida Strait is the narrow sea passage between USA (Florida) and Cuba.
97. Which strait is the narrowest part of the Bering Sea region?
A) Davis Strait
B) Nares Strait
C) Bering Strait
D) Hudson Strait
Answer: C
Explanation: Bering Strait is only ~85 km wide, narrowest point between Russia and Alaska.
98. Which strait has become more navigable due to Arctic ice melting, creating shorter Europe–Asia routes?
A) Bosporus
B) Northwest Passage
C) Strait of Hormuz
D) Strait of Gibraltar
Answer: B
Explanation: Northwest Passage (Arctic Canada) is opening due to climate change, offering alternative to Panama/Suez.
99. The strategic significance of the Strait of Hormuz lies in:
A) Fisheries
B) Oil transport (world’s busiest for crude oil)
C) Tourism
D) Naval training
Answer: B
Explanation: ~20% of global oil passes through the Strait of Hormuz.
100. Which of the following statements about straits is correct?
A) All straits are man-made
B) Straits are always wider than seas
C) Straits are natural narrow waterways connecting two larger water bodies
D) Straits exist only in Asia
Answer: C
Explanation: Straits are natural passages connecting seas/oceans, unlike canals which are man-made.