Which atmospheric layer contains 75% of the mass of Earth's air?
A) the thermosphere
B) the troposphere
C) the mesosphere
D) the stratosphere

Question

Which atmospheric layer contains 75% of the mass of Earth's air? 
A) the thermosphere 
B) the troposphere 
C) the mesosphere 
D) the stratosphere

Quizplus · Accepted Answer

The troposphere is the lowest layer of Earth's atmosphere, extending up to approximately 7-20 km above the surface. It contains almost all of our weather, including clouds, precipitation, and winds. It is also where most of the mass of Earth's air is found, with about 75% of the total atmospheric mass.

Which Atmospheric Layer Contains 75% of the Mass of Earth's