Multiple choice

Consider the following statements:

  1. Normally, atmospheric pressure drops as one goes higher up in the atmosphere because the density of air decreases with altitude.
  2. The temperature decreases with increase in height from the earth’s surface because the atmosphere can be heated upwards only from the earth’s surface.

Which of the above statements is/are true?

  1. Only 1

  2. Only 2

  3. Both 1 and 2

  4. Neither 1 nor 2
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Atmospheric pressure decreases with altitude due to lower air density. Temperature decreases with height in the troposphere because the atmosphere is primarily heated by terrestrial radiation from the Earth's surface.

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