Consider the following statements about temperature inversion : I. This happens when normal lapse rate gets inverted. II. Winter nights with cloudy skies are conducive for temperature inversion. III. Polar areas experience inversion throughout the year. Which of the statements given above are correct?

  1. A. I and II only
  2. B. II and III only
  3. C. I and III only
  4. D. I, II and III

Correct Answer: C. I and III only

Explanation

Temperature inversion occurs when the normal lapse rate is inverted. It is favored by long winter nights with clear skies (not cloudy). Polar areas experience temperature inversion throughout the year.

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