Layers of the Atmosphere

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trososphere
lowest layer, conditions are variable, where weather occurs, shallowest layer, temperatures decreases as altitude increases, water forms thin feathery clouds of ice.
stratosphere
Extends from the trosospher to about 50 km. above the earth, contains the ozone layer, cold but gets cold in the middle, where a layer of air with more ozone absorbs energy from the sun which is converted into heat to warm the air. This protects us from radiation.
mesosphere
third layer up begining at about 50 km., extending to 80 km. above Earth, reaches as low as -90 Celsius, an outer edge protects Earth by being hit by most meteroids
Ozone
Good _______ in the stratosphere protects us from harmful UV rays
Meteroids
Chunks of stone and metal from space, seen to us as "Shooting Stars"(no gases left behind)
Thermosphere
Top layer of the atmosphere extending infinetly to space, very thin, little density, very hot because of the sun, the sun strikes here first, it would feel cold because of how far apart the molecules in the air are from each other.
Ionosphere
Lower layer of thermosphere where energy from the sun electrically charge gas, the molecules turn to ions, radio waves bounce off ions back to Earth, Nothern Lights occur here when particles from the sun enter near the poles and strike atoms causing them to glow.
Exosphere
(exiting the atmosphere) Outer part of the thermosphere which extends into space.
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