Complete the following: layers: Earth as _: Sun This is an analogy by the way.
I have also attached a short paragraph about this question.

A. Milky Way galaxy
B. zero gravity
C. solid surface
D. gas

D. Gas

Explanation:

The correct option is D.

Just like the sun, there is a layer of the earth that is gas. It is known as the atmosphere.

The earth's atmosphere is known to be a layer of gases that are surrounded by the earth and retained by the earth's gravity. The gases in the earth actually contain roughly 78% nitrogen, 21% oxygen, 0.97% argon and carbon dioxide, 0.04% trace amounts of other gases, and water vapor. This combination of gases is commonly called air.

the correct answer is:

a. formation of precipitation