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Most Commercial airplanes fly in the lower part of this layer:

Medium General Knowledge GENERAL KNOWLEDGE FPSC

Question

Most Commercial airplanes fly in the lower part of this layer:

A Stratosphere B Biosphere C Lithosphere D None

Explanation

Explanation
Commercial jet aircraft fly in the lower stratosphere to avoid the turbulence which is common in the troposphere below. The stratosphere is very dry; air there contains little water vapor.

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