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unless you are an alien from outerspace, i think you mean "our" atmosphere. this pressure varies with hight above ground. at sea level, the pressure is referred to as 1 atm. this is equivalent of the force of a column of 760 mm of Mercury.

if you were to go high in an airplane or on a very high mountain, you would notice a decrease in pressure.

similarly, the lowest points on earth have the highest pressures.

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11y ago
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13y ago

It's about 1 millibar at the top, and varies at the bottom (depending on temperature)...somewhere around 10 millibars.

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10y ago

It depends on the weight of the air above the area

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13y ago

At sea level, the Earth's air pressure is 14.7 pounds per square inch. The pressure decreases as the altitude increases.

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11y ago

Yes, the atmospheric pressure is very important.

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12y ago

20 millibars to 10 millibars

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Q: Is there air pressure in the Earth's atmosphere?
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