The atmospheric layer containing most of the mass of the earth's air is the
A)thermosphere.
B)mesosphere.
C)stratosphere.
D)troposphere.
E)tropopause.

Question

Quizplus · Accepted Answer

The troposphere is the atmospheric layer closest to the Earth's surface and contains around 80% of the mass of the atmosphere. It is where weather occurs and where most of the air we breathe exists. The other options are not accurate as the thermosphere contains very little mass, the mesosphere is located above the stratosphere, and the tropopause is a boundary between the troposphere and the stratosphere, not a layer itself.

The Atmospheric Layer Containing Most of the Mass of the Earth's