Multiple choice

What is the height of troposphere at the poles?

  1. 8 km

  2. 9 km

  3. 10 km

  4. 11 km
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A Correct answer
Explanation

The troposphere is shallowest at the poles, extending to approximately 8 km altitude. This is because cold air at the poles is more dense and compact. By contrast, the troposphere extends to about 16-18 km at the equator where warm air creates more vertical expansion and turbulence.

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