Consider the following statements about temperature inversion:

1. Temperature inversion occurs when the normal lapse rate is reversed, and temperature increases with altitude.

2. It is commonly associated with fog formation and smog trapping in urban areas.

3. Temperature inversion is more frequent in tropical regions due to high solar radiation.

4. It enhances convective activity, leading to heavy rainfall.

How many of the above statements is/are correct?

  1. Only one
  2. Only two
  3. Only three
  4. All four

Answer (Detailed Solution Below)

Option 2 : Only two

Detailed Solution

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The correct answer is option 2

Key Points

  • Temperature inversion occurs when the normal lapse rate is reversed, and temperature increases with altitude instead of decreasing. Hence, Statement 1 is correct
  • Temperature inversion is associated with fog formation and smog trapping, as it prevents the vertical mixing of air. Hence, Statement 2 is correct.
  • Temperature inversion is more common in temperate and polar regions, especially during winter, rather than tropical regions. Hence, Statement 3 is incorrect
  • Temperature inversion suppresses convective activity and prevents the upward movement of air, leading to stable atmospheric conditions and reduced rainfall. Hence, Statement 4 is incorrect.

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