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Same reason water pressure is the highest at the bottom of the ocean - the amount of stuff above, pushing down.
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Why is the air pressure greatest at the serface?
The air pressure is greatest at the surface because the weight of the air above pushes down on the air below, compressing it and creating higher pressure. As you move higher in the atmosphere, there is less air above exerting pressure, so the air pressure decreases.
Is air pressure greatest in a cave?
No, air pressure is not greatest in a cave. Air pressure is highest at sea level due to the weight of the air above pushing down. In caves, air pressure is usually lower than at the surface because caves can have openings that allow air to escape.
Why is air pressure greatest at the Earth's surface (the Troposphere answer?
Air pressure is greatest at the Earth's surface, particularly in the troposphere, due to the weight of the air above pressing down on it. The air molecules are denser near the surface because gravity pulls them closer to the Earth, resulting in higher pressure. As you move higher in altitude, there are fewer air molecules above, leading to a decrease in pressure.
Where is the atmospheric pressure the greatest?
The atmospheric pressure is greatest at sea level, where the weight of air above is at its highest due to gravity pulling air molecules towards the Earth's surface. As you move to higher altitudes, atmospheric pressure decreases because there is less air above exerting pressure downwards.
Why is atmospheric pressure greatest at the surface of earth?
Atmospheric pressure is greatest at the surface of the Earth because there is more air above pushing down. As you move higher in the atmosphere, there is less air above, resulting in lower atmospheric pressure. Gravity also plays a role in compressing the air molecules closer to the Earth's surface, increasing the pressure.
Why is air preassuare greastest at the earths surface?
Air pressure is greatest at the Earth's surface because the weight of the air above exerts a force on the air below. As you move higher in the atmosphere, there is less air above pushing down on you, so the pressure decreases. At higher altitudes, there are fewer air molecules, resulting in lower air pressure.
Why is air pressure greatest at the Earth's surface?
Because as you get closer to the surface of the earth, the more air that is on top of you. At the top of the atmosphere, there is no air, and everything is a vacuum, where you have no weight. When you get close to the earth, the weight of the air builds until it when you're at the very lowest point of the earths surface, all the air in the atmosphere above you is pressing down.
Where is air pressure the greatest?
The air pressure is greatest at sea level.
What kind of pressure does a column of air exert on the air or surface below it?
A column of air exerts atmospheric pressure on the air or surface below it. This pressure is caused by the weight of the air above pushing down on the lower air or surface.
Why is airpressure greater near the surface?
Air pressure is greater near the surface because air has mass, which means that the mass of the Earth causes the force of gravity to pull the air towards the surface. This causes the air molecules to compress, which increases air pressure. At the same time, the air molecules want to depressurize, because they are a gas, causing them to physically push on each other. This causes the air pressure closest to the surface to be highest, because the depth of the air above those closest to the surface is greatest. As altitude increases, air pressure decreases for the same reason - there is less mass pushing from above.
What happens when the atmospheric pressure is greatest near the Earths surface?
When atmospheric pressure is greatest near the Earth's surface, it usually indicates stable and fair weather conditions. High pressure systems generally bring clear skies, low humidity, and light winds. This can lead to pleasant weather conditions in the area.
What layer The air pressure is the greatest here?
The layer where air pressure is the greatest is the troposphere. This is the lowest layer of Earth's atmosphere, extending from the surface up to about 8 to 15 kilometers (5 to 9 miles) high, depending on the location and weather conditions. As altitude increases, air pressure decreases, making the troposphere the region with the highest density of air molecules and therefore the highest pressure.
