Question

What is atmosphere?????????

Answer 1

Answer:

The envelope of gases surrounding the earth or another planet.

Answer 2

$\huge\bold\red{HOLA!!}$

The atmosphere is made up of a mixture of gases, mostly nitrogen, oxygen, argon and carbon dioxide. It reaches over 500km above the surface of the planet. There is no exact boundary between the atmosphere and outer space. Atmospheric gases become thinner the higher up you go.