The exosphere is the atmospheric layer farthest from the Earth’s surface. It represents the outermost edge of our atmosphere, where the air is so thin that gas molecules can travel hundreds of kilometers without colliding. In this region, the Earth’s ...
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Temperature in the troposphere decreases with height at a standard rate known as the lapse rate. For every kilometer of ascent, the air cools by roughly six and a half degrees Celsius. This occurs because the troposphere is primarily heated ...