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The atmosphere is a mixture of mostly invisible gases that surrounds earth.The atmosphere extends outward about 500 to 600 km from the surface of earth.But most of the gases lie within 8 to 50 km of earths surface.
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The atmosphere is a mixture of mostly invisible gases that surrounds earth.The atmosphere extends outward about 500 to 600 km from the surface of earth.But most of the gases lie within 8 to 50 km of earths surface.