Multiple choice

Directions: Choose the appropriate answer from the options given below:

Tropopause is the zone between

  1. ionosphere and troposphere

  2. mesosphere and ionosphere

  3. exosphere and stratosphere

  4. troposphere and stratosphere

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The tropopause is the boundary zone between the troposphere (lowest layer) and the stratosphere (layer above). At this boundary, the temperature stops decreasing with altitude (as it does in the troposphere) and begins to increase (as in the stratosphere due to ozone absorption of UV radiation). This transition zone typically occurs at 10-15 km altitude, varying with latitude and season.

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