Ian Dell , Atmosphere
It decreases as you get higher.
For example, if you go to mount Everest you will have to wear protective masks to help him/her breathe, the higher you go the colder.
It's Where We Live!
This is where all the weather happens, for example if you go to where the clouds are you are directly in the troposphere.
Protects us from meteors!
It is very cold but it can help us out with meteors. It burns up the meteors.
It's where the auroras lights happen! (Nothern Lights).
It's warmer up there, and it includes Exosphere And The Ionosphere.