14000+ MCQs World Geography (Oceanography)
Total Questions:- 50
Time:- 30 Minutes
MCQ Pattern
Date:- 30/07/2026
1. The Wyville Thomson ridge is located between
2. Statement I There is high salinity in Red Sea. Statement II Rate of evaporation is high in Red Sea.
3. As compared to continental shelf, the continental slope is
4. Assertion (A) On an average, salinity decreases from equator towards the poles in the ocean. Reason (R) The highest salinity in the oceans is observed at the equator.
5. Which of the following statements are true?
I. The direction of Canary current is North to South.
II. The direction of Benguela current is South to North.
III. The direction of North Atlantic drift is West to East.
IV. The Direction of California Current is North to South.
6. Which one of the following does the ‘West Wind Drift’ belong to?
7. Pelagic zone is one of the most important division of ocean with respect to commercial exploitation. Choose the correct statement.
I. Any water in sea or lake is neither close to bottom nor near the shore can be said to be in pelagic zone.
II. Pelagic life decreases with increasing depth.
III. Demersal zone lies between benthic and pelagic zone.
8. Amsterdam St Paul plateau is located between
9. Which one of the following pairs of island and sea/ocean is not correctly matched?
10. Assertion (A) Continental shelves are very useful to man. Reason (R) Marine food comes entirely from continental shelves.
11. Which of the following are warm ocean currents?
12. Statement I Tsunami is small in open ocean yet may be over 30 m high when it reaches a coastline. Statement II Tsunamis have long wavelength and they travel across the open ocean at high speed. As they approach shore, the wavelength decreases and the wave height increases.
13. The Madagascar island is found in
14. Which one of the following is a warm ocean current?
15. Deep sea plains are characterised by which of the following deposits?
17. Coral reefs are not found in which one of the following regions?
18. Identify the correct statement/s.
I. Littoral deposits generally contains gravels, sand, silt, clay.
II. Terrigeneous deposits are usually deposited at shallow depths.
III. Deep water deposits contain coral mud, volcanic mud.
19. Which one of the following is known as a zone of sharp salinity change in the vertical section of ocean?
20. The increase in salinity of water
21. In which one of the following oceans the Diamantina Trench situated?
22. Which of the following factors generally affects oceanic temperatures?
23. Which one of the following ocean currents is not a warm current?
24. Consider the following statements.
I. Ocean currents are the slow-surface movement of water in the same.
II. Ocean currents assist in maintaining the Earth’s heat balance.
III. Ocean currents are set in motion primarily by prevailing winds.
IV. Ocean currents are affected by the configuration of the ocean.
Which of the statements given above are correct?
25. Assertion (A) Ocean water in the Northern hemisphere is warmer than that of the Southern hemisphere. Reasons (R) In comparison to the Northern hemisphere, rivers discharging into the oceans of the Southern hemisphere are more in number.
26. The average salinity of oceans in the world is
27. Assertion (A) Water in an open pond remains cool even on a hot summery day. Reason (R) Water on heating evaporates and heat energy gets converted into latent heat.
28. Which one of the following sites does not have coral reef formation?
29. On the planet Earth, most of the fresh water exists as ice caps and glaciers. Out of the remaining fresh water, the largest proportion
30. Waves often change direction as they approach a shoreline, a phenomenon known as
31. Which of the following are cold ocean currents?
I. Humboldt Current
II. Brazil Current
III. Oyashio Current
IV. Canary Current
32. Which one of the following type of tides is observed at an interval of every 6 months?
33. Mariana Trench is located in the ocean floor of
34. Which one of the following ocean currents is not a cold ocean current?
35. The time it takes for the crests (or troughs) of two successive waves to pass a given point is known as the
36. Thermohaline is a part of large scale ocean circulation around the earth. Choose the correct statements.
I. It is driven by density gradient.
II. It includes both the processes of sinking and upwelling of water.
III. State of circulation has large impact on climate of Earth.
IV. It is sometimes called ocean conveyor belt or meridional overturning circulation.
37. Which of the following statements relating to tsunami is/are correct? As the tsunamis leave the deep water of the open sea and travel towards shallow water
I. The speed is reduced considerably.
II. They attain enormous height.
III. They appear as a gentle rise and fall of the sea.
38. The Mid Atlantic ridge has a length of about
39. Assertion (A) In the Northern hemisphere, the ocean currents flowing from equator towards the North pole and from pole towards the equator are deflected to their right. Reason (R) This happens due to rotation of the Earth on the axis from West to East.
40. Identify the incorrect statement(s).
I. Other things being equal, the differential effect of wave refraction tends to smooth the coastal outline.
II. A wave of translation can be a powerful force of destruction.
III. Waves often change direction as they approach the shore, a phenomenon known as Wave Refraction.
IV. Wave amplitude is one half of the wavelength.
41. The distance between two adjacent crests and troughs of a wave is known as
42. Tsunamis are not caused by
43. Which of the following factors affects the origin and nature of movement of ocean current?
44. Salinity is higher in which of the following seas or oceans as compared to others?
45. In which ocean is the Kamchataka current found?
46. The ocean relief is generally
47. The average depth of Spanish Basin is
48. Which of the following has the maximum percentage in sea water?
50. Extensive coral formations develop between 30°N and 30°S especially on the ............ margins of the landmasses.
