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10 cards from this deck
Protective layer of gases surrounding Earth
Nitrogen, oxygen, argon, water vapour, carbon dioxide
21%
78%
Photosynthesis
Water cycle
Wind movement carries warm air to poles, cool air to equator
Harmful ultraviolet (UV) radiation
Gases that stay at roughly same % in atmosphere all the time
Surfaces where water vapour can condense (dust, salt, smoke)
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