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If I remember my science correctly the answer is because of pressure. The higher you go up the less pressure there is bearing down on the atmosphere. This means that the air molecules are not so densely packed. Like if you mooosh down on a kitchen sponge how compacted it becomes, remove the pressure and the sponge is much less dense. Same thing with the atmosphere, the higher you go, less pressure, less air molecules.
Wiki User
∙ 16y ago
Wiki User
∙ 13y agoThe air gets less dense when altitude increases and air pressure decreases. At about 100 km from Earth's surface you reach the atmospheric boundary. At that altitude is where the air has the lowest density because there is no air above it forcing it lower by Earth's gravity. On Earth's surface there is 100 km of air above the surface being pulled down by Earth's gravity increasing the pressure and the density. Also, as altitude increases the force of gravity decreases allowing air to flow farther from Earth.
Wiki User
∙ 7y agoAir at any altitude is compressed by the weight of the air above it. At higher altitudes there is less air weighing down form above, so there is less compression.
Wiki User
∙ 14y agoThe air is thinner and less dense
Wiki User
∙ 14y agoYes, it is.
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Does warm less dense air create high pressure zones?
yes
What is a low-pressure system and what is a high-pressure system?
The difference is that Low air pressure has less air molecules pushing down in one area and high air pressure has more air molecules pushing down in one area.
Do polar surface currents bring high or low temperatures?
high pressure region I Think i wrote a paper on it!
Where air is sinking high pressure rainfall is likely as the air sinks?
No. When air sinks in a high pressure system it is compressed and warms up. This tends to cause clouds to evaporate and inhibits convection, thus making rain less likely.
Why are many deserts located on the leeward side of high mountain ranges?
Cooler air holds less water. As air rises over mountains, the air cools and moisture is shed in the form of precipitation. The water is removed from that air as it climbs up over the mountains. When it reaches the land beyond, it is dry air.
Why air pressure is high at low places?
because air pressure is high
Why places near the sea have high humidity?
Places near the sea have high humidity because the seawater evaporates into the air.
Why are airplanes faster at high altitude?
Higher altitude air is less dense. Less density means less air; less air means less friction, and less friction means a higher speed.
Why is air pressure on a high mountain is less than on the lowland?
air pressure on the high mountain is because air flow is fast or velocity of air is more on the high mountain
There are molecules of air at high elevations so air pressure is less?
To fill in the blank, there are FEWER molecules of air at high elevation....
There are molecules of air at high elevation's so air pressure is less?
To fill in the blank, there are FEWER molecules of air at high elevation....
Which characteristic of places at high elevations?
Places at high elevations often have cooler temperatures due to the thinner air which allows less heat to be retained. The air is also typically drier at higher elevations, leading to lower humidity levels. Additionally, the higher elevation can lead to stronger UV radiation exposure due to thinner atmosphere.
Is air pressure greatest in high or low places?
low
What is a characteristic of places at high elevations?
Low air pressure.
How are density pressure and altitude related?
The higher you go, the lesser the air pressure becomes. This can be logically understood. Atmospheric air pressure is caused by the weight of the air above it. At greater heights, the amount of air above you is less, so there is less weight pressing on the air you are in. This is the reason why the atmospheric pressure is higher at the sea-levels and lower at mountains and places of high altitudes.
How does high altitude affect your car's engine?
High altitude gives you less air, therefore a bit less power
What is thicker in low lying regions than in high places?
Air
