The uppermost region of the atmosphere is

Options

A. Stratosphere
B. Mesosphere
C. lonosphere
D. Exosphere

Answer

D

Explanation

The exosphere is the outermost layer of Earth.s atmosphere. It extends from the exobase, which is located at the top of the thermosphere at and altitude of about 700 km above sea level , to about 10,000 km wind . This layer is mainly composed of extremely low density of hydrogen , helium and several heavier molecules. The exosphere is located too far above Earth for any meteorological phenomenon to be possible .