Question

what is atmosphere in earth

Answer 1

Answer:

An atmosphere is a layer of gas or layers of gases that envelope a planet or other material body, which is held in place by the gravity of that body

Answer 2

Answer:

Earth's atmosphere is composed of about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, and 0.1 percent other gases. Trace amounts of carbon dioxide, methane, water vapor, and neon are some of the other gases that make up the remaining 0.1 percent.