1. Formation of rnagma along the bedding plane results in :
Correct : A. Sill
2. Which of the following are correctly matched? [IFS 1993] 1. Gneiss : Metamorphic 2. Granite : Igneous 3. Sandstone : Sedimentary
Correct : D. 1, 2 and 3
3. If the original day sediments are subjected to high temperature and pressure, they
successively change into rocks, the correct order of which is :
Correct : D. Shale, Slate, Schist
4. Artesian wells are found in : [Asstt Grade 1992]
Correct : A. sedimentary rocks
5. Sedimentary rocks are formed by the process of:
Correct : D. both (b) and (c)
6. Choose the correct statement about Sedimentary rocks: [Teachers' Exam 1994]
Correct : D. These rocks have been deposited in layers
7. The igneous rocks are formed due to : [CDS 1992]
Correct : B. granitisation
8. The formation of Extrusive rocks takes place:
Correct : A. By solidification of magma above the earth's surface
9. What is the average salt content in a litre of seawater?
Correct : C. 35 gm.
10. The world's largest lake is: [Railways 1992]
Correct : C. Caspian Sea
11. Which of the following features is not formed by running water?
Correct : B. Tunnels
12. Which of the following are factors that effect the movement of ocean currents? 1. Earth's gravity 2. Atmospheric pressure 3. Winds 4. Salinity of the water 5. Seasonal Variations
Correct : D. All of these
13. Which of the following are the factors that are mainly responsible for the movements of surface oceanic currents? 1. Prevailing winds 2. Earth's Rotation 3. Earthquake activity 4. Bottom Topography 5. Difference in the density of seawater
Correct : C. 1, 2 and 5
14. The 'Water table' refers to :
Correct : B. the upper limit of the zone of saturation
15. Which of the following is a correct sequence of increasing depth?
Correct : C. Continental shelf, Continental slope, Ocean depths, Deep sea plains
16. Given below are names of four oceans: [NDA 1995] 1. Atlantic 2. Arctic 3. Indian 4. Pacific The correct order of these oceans from the smallest to the biggest in terms of area is:
Correct : D. 2, 3, 1, 4
17. Consider the following percentages regarding the world's water resources: 1. Oceans and lakes - 95% 2. Frozen as ice - 4% 3. For man's use - 1% Which of the above are correct percentages? [IFS 1993]
Correct : A. 1, 2 and 3
18. Which is the smallest among the following water bodies?
Correct : C. Japan Sea
19. The largest reserves of fresh water on the Earth's surface is in :
Correct : A. North America
20. Strait of Malacca separates:
Correct : A. Sumatra and Malaysia
21. Hawaiian islands are located in :
Correct : C. North Pacific Ocean
22. The islands of Seychelles are located in the:
Correct : C. Indian Ocean
23. Suez Canal joins: [CRPF 1990]
Correct : B. Red Sea and Mediterranean Sea
24. Diego Garcia is in :
Correct : C. Indian Ocean
25. Consider the following statements: 1. Falkland Islands are situated in Pacific Ocean 2. Red Sea separates Sudan from Egypt. 3. England, Norway, Denmark surround North Sea. Which of these statements is/are correct? [Asstt Comm PF 2002]
Correct : D. 3 only
26. Which one of the following countries does not border the Caspian sea? [IAS 2003]
Correct : A. Armenia
27. The highest lake above the sea level in the world is : [IAS 2003
Correct : D. lake Titicaca
28. The Cape Route has recently assumed some importance in the shipping world because:
Correct : D. all the above
29. Which of the following is called the "Gateway to the Pacific" ?
Correct : B. Panama Canal
30. Which one of the following statements is not true? [IAS 2004]
Correct : A. Gulfs with narrow fronts and wider rears experience high tides
31. Which of the following are true of the Pacific Ocean? 1. It is the largest of all water bodies 2. It is roughly triangular in shape 3. The average depth is about 7300 m 4. Nearly 20,000 islands dot this vast ocean
Correct : D. I, II, III and IV
32. What is the correct decreasing order of the share of different salts in sea water?
33. The coastline formed by the submergence of mountain ridges running parallel to the coast is known as : [IAS 2004]
Correct : A. Dalmation coast
34. Coral reefs are formed by : [IAS 2004]
Correct : D. tiny colonial marine animals which construct limestone skeleton material
35. Consider the following statements : 1. Where fold mountains run parallel and close to the coast, continental shelf is narrow or absent 2. The average depth of continental shelf is 100 meters 3. Submarine canyons are mostly found in continental slope 4. The submarine flat topped mountains are called guyots. Which of the statements given above are correct? [IAS 2004]
Correct : B. 1, 2 and 4
36. Consider the following countries: 1. Algeria 2. Morocco 3. Mauritania Which of these borders is/are the Mediterranean Sea? [CDS 2004]
Correct : B. 1 and 2
37. Which one of the following pairs of straits and the countries they separate is wrongly matched?
Correct : B. Bering Strait - Sumatra and Malaysia
38. The great Asian river Mekong does not run through:
Correct : B. Malaysia
39. Which of the following is not an important condition for growth of coral?
Correct : A. Wave-free salt water
40. Maximum amount of herring fish is obtained from: [IAS 2004]
Correct : A. The North Sea around the Netherlands
41. Which one of the following countries does not border Mediterranean Sea? [NDA 2004]
Correct : D. Bulgaria
42. The direction of ocean currents is reversed with season: [CDS 1991]
Correct : C. in the Indian Ocean
43. Which one of the following factors is responsible for the change in the regular direction
of the ocean currents in the Indian Ocean? [IAS 1997]
Correct : B. Indian Ocean has Monsoon drift
44. The world's highest waterfall is in : [CDS 2002]
Correct : C. Venezuela
45. One will NOT have to pass through the Suez Canal while going from Bombay to: [IAS
1997]
Correct : B. Suez
46. With reference to Ocean currents consider the following statements: 1. West Australian current is a warm current. 2. North East Monsoon Drift flows in the Indian Ocean during winter season. 3. Equatorial counter current does not flow in the Indian Ocean during winter season. 4. Kuroshic current in the Pacific Ocean is like Gulf Stream in the Atlantic Ocean. [NDA 2001]
Correct : D. 2 and 4
47. The oceanic current named as 'Kuroshio, Kurile and Alaskan' are located in [CDS
2001]
Correct : C. North Pacific Ocean
48. Which one of the following seas is without a coastline? [CDS 1999]
Correct : B. Sargasso sea
49. Which one of the following cities is associated with the river Mekong ? [IES 2003]
Correct : B. Phnom-Penh
50. A ship met with an accident at 30ºC and 35ºN. The ship was sailing in the: [CDS 2000]
Correct : C. Mediterranean Sea
51. The Grand Banks are famous fishing grounds in the _____ region.
Correct : C. North-West Atlantic
52. When water freezes in the polar seas the salts:
Correct : B. remain in the subsurface water that does not freeze
53. Which of the following features are formed by the river in its upper course? 1. Gorge 2. Canyon 3. Meander
Correct : A. 1 and 2
54. Which of the following is not helpful for delta formation? [CRPF 1990]
Correct : D. Tidal nature of waves
55. An ox-bow lake is a : [IFS 1993]
Correct : C. lake formed due to cut off meander
56. Erosion of soil by a river mainly depends upon:
Correct : C. its speed at which it flows
57. Which one of the following is correctly matched?
Correct : D. Labrador Current - North Atlantic Ocean
58. The ocean surface currents follow clockwise circulatory paths in the northern parts of the Pacific and Atlantic oceans due to the: [CDS 1994]
Correct : B. corioli's force
59. The Ocean currents transfer heat from :
Correct : D. lower to higher latitudes
60. Which one of the following pairs of ocean currents meet each other near Newfound land? [NDA 1994]
Correct : B. Gulf stream and Labrador
61. Two main cold currents in the North Pacific Ocean are known as [IAS 2009]
Correct : A. Oyashio and California currents
62. The following statements are made about ocean currents: 1. They are warm off the west coast of continents within the tropics 2. They move clockwise in the oceans of the Southern Hemisphere 3. They move clockwise in the oceans of the Northern Hemisphere Which of the above are correct?
Correct : D. 1 and 3
63. The Dogger Bank, the main fishing area of Europe, lies in [IAS 2009]
Correct : C. North Sea
64. Consider the following statements: 1. Ocean currents are the slow- surface movement of water in the ocean. 2. Ocean currents assist in maintaining the Earth's heat balance. 3. Ocean currents are set in motion primarily by prevailing winds. 4. Ocean currents are affected by the configuration of the ocean. Which of these statements are correct? [IAS 2002]
Correct : D. 1, 2, 3, and 4
65. Which one of the following is not the part of North Atlantic ocean current system? [IAS
2003]
Correct : C. Brazilian current
66. Which among the following currents is produced by upwelling of water off the coast of
Chile and Peru? [IAS 2003]
Correct : B. Humboldt Current
67. Which factors influence ocean currents? 1. Coriolis force 2. Local winds 3. Waves 4. Continent shape
Correct : D. I, II and IV
68. Cold currents have cooling effect on the shore of:
Correct : A. Peru
69. Which of the following is wrongly matched?
Correct : C. Kamchatka Current : Warm
70. The winter temperatures of north-western Europe are higher than those of eastern Europe in the same latitudinal zone because:
Correct : D. it lies under westerly winds which blow over the Gulf Stream Drift
71. Which is the correct order of ocean currents in the northern part of Pacific ocean in clockwise direction?
Correct : C. North equatorial - Kuroshio - Pacific drift - North equatorial
72. The cold Labrador current brings nine months winter to :
Correct : B. Eastern Newfoundland
73. Fishing grounds are concentrated in the high latitudes. The reasons are: 1. great length of indented coastline 2. extensive continental shelves 3. water temperatures lower than 20°C 4. sparse population
Correct : A. 1, 2 and 3
74. Which of the following are reasons for the chief fishing grounds being located in
continental shelf areas where cold and warm currents meet? 1. Warm currents are rich in phosphates and nitrates 2. Plankton - the chief fish feed - thrives in these regions 3. The meeting of cold and warm currents allows the water to be well aerated 4. The epicontinental seas allow sunlight to reach almost to the bottom
Correct : D. II, III and IV
75. Sargasso sea is located in :
Correct : B. North Atlantic Ocean
76. The greatest known ocean depth (which lies in the Pacific Ocean) is :
Correct : D. 11,033 m
77. The World's largest shipping canal is:
Correct : A. Suez in Egypt
78. Strait of Florida runs in between:
Correct : C. Atlantic Ocean and Gulf of Mexico
79. The Strait which separates Asia from North America is: [Asstt Grade 1992]
Correct : A. The Bering Strait
80. The Panama Canal links :
Correct : D. Atlantic Ocean with Pacific Ocean
81. The Strait which separates Africa from Europe is : [Intelligence Bureau 1994]
Correct : B. Strait of Gibraltar
82. The Kiel Canal links the: [Railways 1994]
Correct : C. North Sea and Baltic Sea
83. The Caspian Sea, the largest inland sea or lake in the world, is located:
Correct : C. partly in Europe and partly in Asia
84. Which is the largest sea in the world?
Correct : B. South China Sea
85. Which is the largest Gulf in the World? [Railways 1995]
Correct : B. The Gulf of Mexico
86. Victoria Falls in Africa are located on :
Correct : C. River Zambezi
87. The World's longest river is :
Correct : A. Nile
88. Which of the following is the largest river in the world? [MBA 1990]
Correct : D. Amazon
89. The highest waterfall of the world is: [RRB 1992]
Correct : C. Salto Angel Falls
90. Which river crosses the Equator twice?
Correct : B. Congo
91. The largest lake in Africa is:
Correct : A. Lake Victoria
92. Niagara Falls are in: [Bank PO 1991]
Correct : D. U.S.A.
93. Which of the following rivers falls into the Atlantic Ocean? 1. Orinoco 2. Danube 3. Amazon 4. Congo
Correct : B. 1, 3 and 4
94. The Strait connecting Arabian Sea and the Bay of Bengal is: [IES 1991]
Correct : C. Palk Strait
95. Which of the following pairs is not correctly matched? [CDS 1992]
Correct : A. Algeria-Niger
96. Which of the following rivers flowing through Pakistan has its source of origin in that country itself?
Correct : D. None of these
97. Which of the following is the deepest lake? [MBA 1994]
Correct : D. Lake Baikal
98. Which river has the largest drainage basin?
Correct : D. Amazon
99. Which is the largest fresh water lake in the world ? [CDS 2002]
Correct : B. Lake Superior
100. Which set of two rivers form the world's largest delta before their waters flows into the
respective sea?