NCERT Class 11 Chapter 13 Geography Water (Oceans) MCQ | Questions & Answers: Interested in learning about Class 11 Chapter 13 Geography Water (Oceans)? well then, this article is the right one for you. The MCQ Quiz that is provided here about NCERT Class 11 Chapter 13 Geography Water (Oceans) will help you learn concepts and also test your existing knowledge.

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1. Name the saline layer of ocean waters which was identified on the basis of temperature:

A. thermocline

B. halocline

C. layer of warm water

D. none of these

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2. The average time that an element remains dissolved in the ocean before removal is known as

A. residence time

B. critical time

C. mean time

D. none of these

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3. What is the average salinity of the ocean water?

A. 35 per thousand

B. 350 per thousand

C. 3.5 per thousand

D. 3 per thousand

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4. Name the mid-oceanic ridge in the North Atlantic Ocean,

A. Walvis

B. Dolphin ridge

C. Challenger

D. none of these

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5. Name the mid-oceanic ridge in the South Atlantic Ocean.

A. Challenger ridge

B. Dolphin ridge

C. Walvis

D. Chille

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6. Name the ocean which resembles the shape of ‘S’:

A. Pacific

B. Antarctic

C. Atlantic

D. Arabian

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7. What is the average annual temperature of all the oceans?

A. 17.2°C

B. 1.72°C

C. 17.5°C

D. 17.0°C

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8. Name the largest ocean in the world.

A. Indian

B. Pacific

C. Atlantic

D. none of these

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9. Which is the deepest ocean of the world?

A. Pacific

B. Indian

C. Atlantic

D. Antarctic

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10. Which is the deepest part of all the oceans?

A. Mariana Trench

B. Bonin Trench

C. Sunda Trench

D. Tonga Trench

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11. Name the deepest part of the Indian ocean.

A. Mariana Trench

B. Sunda Trench

C. Tonga Trench

D. none of these

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12. The feature of continental margins of the oceans compared with deep gullies on the land surface is

A. Submarine Canyon

B. Southwestern Pacific

C. South China

D. none of these

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13. How much part of the earth is covered by Pacific Ocean?

A. 1/2 part

B. 1/4 part

C. 1/3 part

D. 2/3 part

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14. How much percentage of ocean floor is covered by the continental shelf?

A. 7.6%

B. 76%

C. 76.0%

D. 1.76%

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15. How much part of the earth is covered by water?

A. 76%

B. 71%

C. 7.1%

D. 81%

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16. Which is the main bank of the world?

A. Doggar bank

B. The Grand bank

C. both of these

D. none of these

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17. How much is the depth of Mariana trench?

A. 4000 m.

B. 11033 m

C. 7800 m

D. 3640 m.

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18. Which is the important property of ocean water?

A. temperature

B. salinity

C. both of these

D. none of these

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19. The mountains which have flat summits are known as

A. sea mount

B. canyon

C. guyots

D. ridges

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20. Abyssal plains are located at the depth of

A. 2000-6000 m.

B. 3000-6000 m

C. 2000-4000 m

D. 3000-7000 m

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21. How long is the mid-ocean ridge?

A. 14000 km.

B. 1400 km.

C. 140000 km.

D. 1.4 km.

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22. A deep gorge on the continental slope is known as

A. canyon

B. submarine trench

C. ridge

D. gullies

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23. How many types of slopes are there?

A. 5

B. 7

C. 6

D. 4

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24. Bermuda is a

A. pico

B. cape Verde

C. coral

D. none of these

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25. What is the special feature of the Atlantic Ocean?

A. mid Atlantic ridge

B. sea mount

C. guyot

D. bank

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