atmosphere & climatology section 8 Practice Questions Answers Test with Solutions & More Shortcuts

Question : 51

A layer in the Earth’s atmosphere called the ionosphere facilities radio communication Why?

  1. The presence of ozone causes the reflection of radio waves to earth.
  2. Radio waves have a very long wavelength.
Which of the statements given above is/are correct?

a) 2 only

b) 1 only

c) Neither 1 nor 2

d) Both 1 and 2

Answer: (c)

Question : 52

Normally, the temperature decreases with the increase in height from the Earth’s surface, because

  1. the atmosphere can be heated upwards only from the Earth’s surface.
  2. there is more moisture in the upper atmosphere.
  3. the air is less dense in the upper atmosphere.
Select the correct answer using the codes given below :

a) 2 and 3

b) 1 only

c) 1, 2 and 3

d) 1 and 3

Answer: (d)

  1. The atmosphere can be heated upwards only from the Earth’s surface.
  2. There is more moisture in the upper atmosphere.
  3. The air is less dense in the upper atmosphere.

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