give reason to explain the following
Answers
Summer Air: Warm, summer air "holds" more moisture, so the humidity is higher. Winter Air: Cold, winter air contains less water, so the humidity is lower.
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Answer:
As altitude rises, air pressure drops. ... As altitude increases, the amount of gas molecules in the air decreases—the air becomes less dense than air nearer to sea level. This is what meteorologists and mountaineers mean by "thin air." Thin air exerts less pressure than air at a lower altitude.In the International Space Station, the density of the air is maintained so that it is similar to the density at the earth's surface. ... Back on Earth, as elevation increases, the number of molecules decreases and the density of air therefore is less, meaning a decrease in air pressure.As the pressure decreases, the amount of oxygen available to breathe also decreases. At very high altitudes, atmospheric pressure and available oxygen get so low that people can become sick and even die. ... When a low-pressure system moves into an area, it usually leads to cloudiness, wind, and precipitation.