The atmosphere (the air above you) naturally applies air pressure as a result of Earth's gravity. In other words, because it is made of matter it has weight.
Gravity is a function of mass and distance. So, no air pressure does not affect gravity.
Air does have a weight! And it is because of gravity! Note that this is per definition true because weight is only defined in the presence of gravity. Perhaps you are confused about why the air is up in the atmosphere and not down here on the ground with us? This has to do with air pressure. You see, materials don't like to be compressed, which is what gravity tries to do. Gravity tries to compress the air to the ground, but faces increased air pressure as it does so. Basically what happens is that the air particles repulse each other and thus tend to drive them apart. This force increases if you force the particles to be closer to each other. As gravity tries to pull air down, the air pressure increases which counter balances the pull of gravity. In the end a stable system is formed where the air pressure is highest down near the ground and lowest up in the upper lays of the atmosphere. The air particles up in the atmosphere do feel gravity, but if they would move down they would feel an increased air pressure which pushes them up again!
Its because of gravity.
In simple terms... gravity ! Gravity is holding the air close to the surface of the Earth. The further away you are from the surface - the lower the gravity - and thus the lower the air pressure.
Mass and Earth's gravity
The atmosphere (the air above you) naturally applies air pressure as a result of Earth's gravity. In other words, because it is made of matter it has weight.
Gravity is a function of mass and distance. So, no air pressure does not affect gravity.
an air compressor Or gravity if you mean atmospheric pressure.
It is gravity.
Air pressure is a product of the operation of gravity on the mass of atmospheric air. If there were insufficient or no gravity on Earth, the atmosphere would drift off into space. There would be no air pressure. But, because there IS gravity on Earth, the atmosphere presses down on Earth's surface, resulting in the phenomenon known as air pressure.
Air does have a weight! And it is because of gravity! Note that this is per definition true because weight is only defined in the presence of gravity. Perhaps you are confused about why the air is up in the atmosphere and not down here on the ground with us? This has to do with air pressure. You see, materials don't like to be compressed, which is what gravity tries to do. Gravity tries to compress the air to the ground, but faces increased air pressure as it does so. Basically what happens is that the air particles repulse each other and thus tend to drive them apart. This force increases if you force the particles to be closer to each other. As gravity tries to pull air down, the air pressure increases which counter balances the pull of gravity. In the end a stable system is formed where the air pressure is highest down near the ground and lowest up in the upper lays of the atmosphere. The air particles up in the atmosphere do feel gravity, but if they would move down they would feel an increased air pressure which pushes them up again!
Because of gravity
Its because of gravity.
air pressure
the result of air mass/air weight is air pressure.
In simple terms... gravity ! Gravity is holding the air close to the surface of the Earth. The further away you are from the surface - the lower the gravity - and thus the lower the air pressure.