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When altitude increases, air temperature decreases. This is because, with an increase in altitude, there is a decrease in air pressure. When air pressure decreases, air cools down. More »

www.reference.com Science Earth Science Atmosphere

Air temperature decreases as altitude increases. Air is a mixture of gases, and at higher altitudes, air pressure decreases, which cools any gas. Air pressure on Earth is estimated to be about 14.7 pounds per square inch... More »

www.reference.com Science Earth Science

As altitude increases, the air pressure decreases. The surface of the earth is the bottom of an ocean of air. The layers on top increase pressure so that at sea level a body is under 14.7 pounds of pressure per square in... More »

www.reference.com Science Earth Science Atmosphere
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The atmosphere becomes less dense as altitude increases because there is less weight on the air molecules, making them less compressed. The air at lower altitudes is denser because it is pressed down by the weight of all... More »

www.reference.com Science Earth Science Atmosphere

Air cools when it rises through the atmosphere because as altitude increases, air pressure decreases and allows the individual air molecules to expand away from each other. This expansion leads to a decrease in collision... More »

www.reference.com Science Earth Science Atmosphere

The environmental lapse rate is found by dividing the change in temperature by the change in altitude. The environmental lapse rate is calculated in terms of a stationary atmosphere and may also be referred to as the tem... More »

www.reference.com Science Earth Science Atmosphere

As altitude increases, the air pressure decreases. The surface of the earth is the bottom of an ocean of air. The layers on top increase pressure so that at sea level a body is under 14.7 pounds of pressure per square in... More »

www.reference.com Science Earth Science Atmosphere