Question

main features of exosphere

Answer 1

The exosphere is one of the five layers of earth's atmosphere. The other layers include the troposphere, stratosphere, mesosphere, and thermosphere. The exosphere is the fifth and outermost layer of the atmosphere, beginning at the upper boundary of the thermosphere and lower exosphere, referred to as exobase, exopause, and the 'critical altitude'. Because the upper boundary of the thermosphere varies from 311 to 621 miles, the beginning point of the exosphere also varies within this distance. The word 'exosphere is derived from the Greek word 'exo' meaning 'outside' or 'external.' Where the exosphere ends space begins.

Answer 2

Answer:

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