Oceanography-Temperature and Salinity of the Oceans (CBSE-NET (UGC) Geography (Paper-II & Paper-III)): Questions 18 - 22 of 32

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Question number: 18

» Oceanography » Temperature and Salinity of the Oceans

MCQ▾

Question

Normal salinity of seawater defined as the amount of salt per thousand grams of sea water. Which of the following is true for it.

Choices

Choice (4) Response

a.

30 gm

b.

35 gm

c.

40 gm

d.

25 gm

Question number: 19

» Oceanography » Temperature and Salinity of the Oceans

MCQ▾

Question

What is the most common salt in the seawater?

Choices

Choice (4) Response

a.

Sodium Chloride

b.

Magnesium Sulphate

c.

Calcium Carbonate

d.

Calcium Chloride

Question number: 20

» Oceanography » Temperature and Salinity of the Oceans

MCQ▾

Question

In summers the salinity in the Polar area

Choices

Choice (4) Response

a.

fluctuates

b.

remains constant

c.

increases steadily

d.

decreases

Question number: 21

» Oceanography » Temperature and Salinity of the Oceans

Assertion-Reason▾

Assertion (Ꭺ)

Despite low evaporation and stable stratification of the atmosphere, salinity is high in Polar Regions.

Reason (Ꭱ)

Seawater freezes leaving the remaining water saltier than before.

Which of the following is true?

Choices

Choice (4) Response

a.

Ꭺ is false but Ꭱ is true

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Both Ꭺ and Ꭱ are false

Question number: 22

» Oceanography » Temperature and Salinity of the Oceans

Assertion-Reason▾

Assertion (Ꭺ)

In the tropical zone, the western sections of the ocean are warmer than the eastern sections.

Reason (Ꭱ)

In the oceans, temperature of the surface water is the same everywhere.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are false

c.

Ꭺ is true but Ꭱ is false

d.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

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