Answer :

Hey there!

1.) Without the atmosphere, average temperature on Earth would be freezing! Below zero to be exact!

2.) The atmosphere protects us and animals from dangerous radiation from the Sun. Ultraviolet radiation is basically invisible rays of energy created by the sun.

3.) Also, the atmosphere provides oxygen for humans and animals to breathe and C02 (Carbon dioxide) for plants. 

4.) And lastly, the atmosphere protects us from objects coming towards the earth. 

Hope this helps!
carlosego

Among some of the functions of the atmosphere we have:

1) The atmosphere acts as a protective shield or as a shield against the possible fall of meteorites coming from outer space on the earth.

2) The atmosphere protects the planet earth against the action of solar radiation. Without the atmosphere, human beings are exposed to the action of ultraviolet rays.

3) The atmosphere provides oxygen. This is vital for the organism in order to be able to complete the basic functions of life.

4) The atmosphere protects the planet from drastic variations in temperature and climate during the day and night.

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