Question

Q. Consider the following statements

Which of the statements given above is/are incorrect?

• A.
  1 only
• B.
  2 only
• C.
  Both 1 and 2
• D.
  Neither 1 nor 2

Answer 1

The correct option is D

Neither 1 nor 2
Explanation:

Statement 1 is correct. Normally, temperature decreases with increase in elevation. It is called normal lapse rate. At times, the situation is reversed and the normal lapse rate is inverted. It is called Inversion of temperature. The heat of the day is radiated off during the night, and by early morning hours, the earth is cooler than the air above. Over polar areas, temperature inversion is normal throughout the year.

Statement 2 is correct.. Inversion is usually of short duration but quite common nonetheless. A long winter night with clear skies and still air is an ideal situation for inversion. As clouds trap heat it will not favour temperature inversion.