ain explains the geological paradoxes how our green planet's atmosphere is both destructive and protective, mighty and vulnerable, vital to life's metabolism and altered by it. Its many layers have different functions, notably in climatic processes. Its alteration is crucial to climatic change, both natural cyclical and the man-caused greenhouse effect. As winds, ultimately powered by solar energy, deified in various cultures, it shapes matter trough erosion and moves lots of it, especially rains and dust. It also allows air travel.

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