?  Library of Wonders The Wonder of  Air

What’s the atmosphere’s role?

What’s the role of the atmosphere, which surrounds the Earth? We are able to live thanks to the Earth having an atmosphere. Animals live by breathing the oxygen in the atmosphere.

There’s a layer of gas called ozone in the upper part of the atmosphere. The ozone layer is very important because it blocks most of the ultraviolet rays from the sun. The ozone layer protects us from ultraviolet rays, which are harmful to living things.

The moon doesn’t have an atmosphere. As a result, temperatures at its equator swing from about 130 degrees Celsius in the daytime to about −170 degrees Celsius at nighttime. Because of our atmosphere, the Earth has a moderate climate, which makes it easy for living things to live.