The lower 80 kilometers or so in the atmosphere in which gases are found in uniform proportions is the ________.
A) heterosphere
B) homosphere
C) ionosphere
D) exosphere
E) stratosphere

Question

Quizplus · Accepted Answer

The homosphere refers to the lower 80 kilometers or so in the atmosphere where gases are found in uniform proportions. The heterosphere refers to the upper atmosphere where gases are layered based on their atomic weight. The ionosphere is a region in the upper atmosphere where ionization of gases occurs. The exosphere is the outermost layer of the atmosphere. The stratosphere is a layer of the atmosphere above the troposphere, extending roughly 10-50 kilometers above the Earth's surface.

The Lower 80 Kilometers or So in the Atmosphere in Which