1. There are four different layers in the earths atmosphere named Troposphere, Stratosphere, Mesosphere, and Thermosphere.

                              2. Our atmosphere is made out these 3 main gases it's 78% nitrogen ,21% oxygen ,and 1% other.

3. As you go higher in the atmosphere the pressure gets lower and lower.

4. The atmosphere protects us from space radiation, some meteors and space rocks, and dangerous sun rays, and many others.


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