Question

what is atmosphere??????​

Answer 1

Answer:

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. 

Answer 2

Answer: The atmosphere is commonly known as a 'blanket of air' that surrounds the Earth. It is made up of several layers of gasses and makes Earth habitable by blocking harmful sun rays from reaching Earth, trapping in heat to create a comfortable temperature, and creating pressure for water to exist.

Hope that helped :)