GEOLOGY

Detailed explanation-1: -Near the Earth’s surface, air gets cooler the higher you climb. As you climb a mountain, you can expect the air temperature to decrease by 6.5 degrees C for every 1000 meters you gain. This is called the standard (average) lapse rate.

Detailed explanation-2: -As you increase in elevation, there is less air above you thus the pressure decreases. As the pressure decreases, air molecules spread out further (i.e. air expands), and the temperature decreases. If the humidity is at 100 percent (because it’s snowing), the temperature decreases more slowly with height.”

Detailed explanation-3: -As the pressure decreases, air molecules spread out further (i.e. air expands) and the temperature decreases.

Detailed explanation-4: -The rate of decline is surprisingly fast: around 1°C for every 100m, and continues all the way up to the so-called tropopause around 12km above the Earth. At these altitudes, barely 10 per cent of the atmosphere remains, and the air pressure is so low that the temperature falls to a lethally cold-55°C.

Detailed explanation-5: -Higher altitudes are typically colder. That’s because in the bottom ten or so miles of the atmosphere, air mixes vertically–cold air sinks, and hot air rises.