Question

what is atmosphere write its composition ?​

Answer 1

Answer:

An atmosphere is the layers of gases surrounding a planet or other celestial body.

Nitrogen — 78 percent. Oxygen — 21 percent. Argon — 0.93 percent. Carbon dioxide — 0.04 percent. Trace amounts of neon, helium, methane, krypton and hydrogen, as well as water vapor.

Answer 2

Explanation:

what is an atmosphere?

An atmosphere is a layer or a set of layers of gases surrounding a planet or other material body, that is held in place by the gravity of that body. An atmosphere is more likely to be retained if the gravity it is subject to is high and the temperature of the atmosphere is low.

It's composition

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.