atmosphere & climatology section 6 MCQ Questions & Answers Detailed Explanation

Question : 1

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 : 2

In which of the following layer of atmosphere the absorption and scattering of the solar ultraviolet radiation takes place?

a) Stratosphere

b) Troposphere

c) Thermosphere

d) Mesosphere

Question : 3

If there is no carbon dioxide in the earth’s atmosphere, the temperature of the earth’s surface would be

a) higher than the present

b) dependent on the amount of oxygen in the atmosphere

c) the same

d) less than the present

Question : 4

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 : 5

Which one of the following is the correct sequence of the climatic regions while going from Zaire to the Netherlands?

1. Equatorial climate
2. Mediterranean climate
3. Hot desert climate
4. West European climate

a) 1, 4, 2, 3

b) 1, 3, 2, 4

c) 3, 2, 1, 4

d) 2, 3, 4, 1

Question : 6

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