UPSC NCERT GEOGRAPHY NOTES: TOPIC WISE SOLVED MCQ’s

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1. It is reported that there is an ongoing decrease in the pH value of ocean water because of global warming. It happens due to 

a) Larger uptake of CO2 by ocean water

b) Lesser uptake of CO¬2 by ocean water

c) Larger uptake of atmospheric nitrogen by ocean water

d) Lesser uptake of atmospheric nitrogen by ocean water

Ans:     B

2. According to the Geo-scientists, the shape of the earth is

1. Round

2. Spherical

3. Close to that of a sphere

4. An oblate ellipsoid

Select the correct answer using the code given below

a) 2, 3 and 4

b) 1, 2 and 3

c) 1 and 2 only

d) 3 and 4 only

Ans:     D

3. Which of the following elements are found in the highest and lowest quantities respectively in the crust of the earth?

a) Oxygen and silicon

b) Calcium and sodium

c) Sodium and magnesium

d) Oxygen and magnesium

Ans:     D

4. The most abundant element is:

a) Silicon

b) Calcium

c) Nitrogen

d) Oxygen

Ans:     D

5. Which of the following is/are the direct source (s) of information about the interior of the earth?

1. Earthquake wave

2. Volcano

3. Gravitational force

4. Earth magnetism

Select the correct answer using the code given below.

a) 1 and 2 only

b) 2 only

c) 3 and 4 only

d) 1, 2, 3 and 4

Ans:      A

6. The most abundant metal in the earth’s crust is:

a) Calcium

b) Aluminium

c) Iron

d) Magnesium

Ans:     B

7. What does the term ‘Lithosphere’ refer to?

a) Interior of the Earth

b) Crust of the Earth

c) Plants and animals

d) None of the above

Ans:      B