atmosphere & climatology section 6 MCQ Questions & Answers Detailed Explanation

Question : 1

Which of the following statement is/are correct?

a) Corona is produced by refraction by water droplets.

b) Halo is produced by diffraction in ice crystals.

c) Though corona and halo is produced by different phenomena, the colour sequence produced in them remains the same.

d) Halo is an indication of approaching bad weather.

Question : 2

Assertion (A):
The environment of the equatorial regions is conducive for plants not for humans.
Reason (R):
The average annual temperature difference is very low in equatorial regions.
By using the code given below, select the correct answer.

a) Both (A) and (R) are true, but (R) is not the correct explanation of (A)

b) Both (A) and (R) are true and (R) is the correct explanation of (A)

c) (A) is false, but (R) is true

d) (A) is true, but (R) is false

Question : 3

The horizontal wind circulation near the Earth’s surface is due to the

1. Pressure gradient.
2. Frictional force.
3. Coriolis force.

a) 2 and 3 only

b) 1 only

c) 1, 2 and 3

d) 1 and 3 only

Question : 4

Consider the following statements:

1. Clouds generally reflect some of the sunlight in different directions and the rest is absorbed.
2. Nearly 90% of the water vapour lies below 12 km of the atmosphere.
3. Water vapour does not exceed 3 per cent to 4 per cent of the total volume of air.
4. Nitrogen serves mainly as a dilutant and dissolver.

a) 2 and 3

b) 1 and 2

c) 3 and 4

d) 3 only

Question : 5

Dalbergia species is associated with which one of the following?

a) Coffee

b) Cashew nut

c) Rosewood

d) Tea

Question : 6

Which of the following is the uppermost layer of the atmosphere?

a) Mesosphere

b) Stratosphere

c) Exosphere

d) Ionosphere