Question

Which of the following layers of the atmosphere where the molecules are gravitationally bound to that body?

a.
Thermosphere

b.
Exosphere

c.
Stratosphere

d.
Mesosphere

Answer 1

b.

Step-by-step explanation:

The air in the exosphere is very thin, and is made up mostly of helium, and hydrogen which traces other gases such as atomic oxygen and carbon dioxide.