The mesosphere is a layer of the atmosphere directly above which layer?

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Study for the Pilot's Handbook of Aeronautical Knowledge Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

The mesosphere is a layer of the atmosphere directly above which layer?

Explanation:
The key idea is the vertical arrangement of Earth's atmospheric layers. From the ground up it goes: troposphere, stratosphere, mesosphere, then thermosphere. The mesosphere sits on top of the stratosphere and below the thermosphere, so the layer directly beneath the mesosphere is the stratosphere. The troposphere is below the stratosphere (where weather occurs), and the thermosphere is above the mesosphere, so those fit less with the wording of the question.

The key idea is the vertical arrangement of Earth's atmospheric layers. From the ground up it goes: troposphere, stratosphere, mesosphere, then thermosphere. The mesosphere sits on top of the stratosphere and below the thermosphere, so the layer directly beneath the mesosphere is the stratosphere. The troposphere is below the stratosphere (where weather occurs), and the thermosphere is above the mesosphere, so those fit less with the wording of the question.

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