Question

Question 6 of 10

Where is the atmosphere the most dense?

A. At the top
B. At the bottom
C. At the coldest part.
D. At the warmest part.

Answer 1

B. At the bottom.

The atmosphere is composed of gases that surround the Earth and is thickest, or most dense, at the bottom or nearest to the Earth's surface. This layer is called the troposphere and is where weather occurs, with the density of the atmosphere decreasing as altitude increases. The top of the atmosphere is called the exosphere, where air pressure is extremely low, and the gases gradually blend into the vacuum of space.