The atmospheric layer located at the very edge of Earth’s influence is known as the exosphere. This region is the transition zone between our planet’s atmosphere and interplanetary space. Here, the air consists mainly of extremely low-density hydrogen and helium. ...
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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 ...