Explore topic-wise MCQs in Oceanography (Geography).

This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Oceanography (Geography) knowledge and support exam preparation. Choose a topic below to get started.

1.

Assertion (A) : The temperature recorded at the surface of enclosed seas of high latitudes is lower than the temperature recorded at relatively greater depth.Reason (R) : The surface of ocean directly receives insolation and heat is transmitted to the lower part of the ocean through the process of conduction.Codes

A. Both (A) and (R) are true and (R) is the correct explanation of (A)
B. Both (A) and (R) are true but (R) is not the correct explanation of (A)
C. (A) is true but (R) is false
D. (A) is false but (R) is true
Answer» B. Both (A) and (R) are true but (R) is not the correct explanation of (A)
2.

Consider the following statements1. The temperature and salinity differences, the trigger thermohaline circulation of deep-sea, are generated at the ocean surface in the low-latitude wind belts.2. The deep-sea currents of Indian Ocean are generated in the water girdling Antarctica.Which of the statements given above is / are correct ?

A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer» D. Neither 1 nor 2
3.

Consider the following statements1. Temperature of surface water is comparatively higher in the northern hemisphere.2. The isotherms in the southern hemisphere are not regular and do not follow the latitudes while they (isotherms) are regular and follow the latitudes in the northern hemisphere.Which of the statement (s) given is / are correct ?

A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer» B. 2 only
4.

Consider the following statements1. The sea water temperature of Red Sea is higher than that of Persian Gulf.2. The Baltic Sea water is more saline than that of Black Sea.Which of the statements given above is / are correct ?

A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer» E.
5.

Assertion (A) : The great Barrier Reef is located near Australia.Reason (R) : The coral plops grow in shallow, saline and warm waters.Code

A. Both (A) and (R) are true and (R) is the correct explanation of (A)
B. Both (A) and (R) are true but (R) is not the correct explanation of (A)
C. (A) is true but (R) is false
D. (A) is false but (R) is true
Answer» C. (A) is true but (R) is false
6.

Consider the following statement1. Nearly 30% of the petroleum production in the world is from the offshore areas.2. The exclusive economic zone in the oceans extends up to 100 nautical miles from the coast.3. Only less than 1% of marine area is declared as protected area.4. The largest marine protected area is the Great Barrier Reef.Which of these statements are correct ?

A. 1 and 2
B. 1, 3 and 4
C. 1 and 4
D. 2 and 3
Answer» C. 1 and 4
7.

Assertion (A) : The temperature in the southern hemisphere is considerable lower than that in the northern hemisphere.Reason (R) : The large mass of ice-covered Antarctic continent is an important source of cold in the south.Codes:

A. Both (A) and (R) are true and (R) is the correct explanation of (A)
B. Both (A) and (R) are true but (R) is not the correct explanation of (A)
C. (A) is true but (R) is false
D. (A) is false but (R) is true
Answer» C. (A) is true but (R) is false
8.

Assertion (A) : Corals are not found near the shores where rivers meet the sea.Reason (R) : Corals do not thrive in regions where waters contain a lot of silt.Code

A. Both (A) and (R) are true and (R) is the correct explanation of (A)
B. Both (A) and (R) are true but (R) is not the correct explanation of (A)
C. (A) is true but (R) is false
D. (A) is false but (R) is true
Answer» B. Both (A) and (R) are true but (R) is not the correct explanation of (A)
9.

Coral reefs are formed by

A. volcanic rocks
B. marine sediments
C. Chlorine material precipitatied from sea water
D. Tiny colonial marine animals which construct limestone skeleton material
Answer» E.
10.

The Great Barrier reef is

A. Conglomeration of corals in Australian waters
B. Mountains range in Utah, USA
C. Salt hills of Afghanistan
D. Sub - oceanic mountain in south China sea
Answer» B. Mountains range in Utah, USA
11.

The winter temperature of north - western Europe are higher than those of eastern Europe in the same latitudinal zone because

A. it is on the western side of the continent
B. It is near the sea
C. It receives only light falls of snow
D. It lies under westerly winds which blow over the Gulf Stream Drift
Answer» E.
12.

The sea surface take place as the solar energy once received is re-radiated as long wave radiation from the sea water

A. Kinetic energy
B. Currents
C. Back radiation
D. Exchange of heat
Answer» D. Exchange of heat
13.

Coral reefs

A. volcanic rocks
B. marine sediments
C. Chlorine material precipitatied from sea water
D. Tiny colonial marine animals which construct limestone skeleton material
Answer» E.
14.

Consider the following statement

A. 1 and 2
B. 1, 3 and 4
C. 1 and 4
D. 2 and 3
Answer» C. 1 and 4