AtmosphereBy: Meghan Patsios 1)The atmosphere is made of 4 layers 2) there is mostly nitrogen in the troposphere also oxegen. 3) without the atmosphere we would be freezing in the night and hot in the day time. 4) The mesosphere protects us from meteors 5) The greenhouse effect traps in heat. 6) The higher you go in the atmosphere the less air there is to breath. 7) The atmosphere keeps water on our earth 8)The higher you go in the atmosphere the lower the pressure 9) The stratosphere protects us from the suns rays 10) The atmosphere is held by gravity.