what is atmospheric pressure
Answers
Answer:
Atmospheric Pressure is also known as Barometric pressure, within the atmosphere Of earth.
Question:
What ia atmospheric pressure?
Answer:
Atmospheric pressure is the force exerted at any given point on the Earth’s surface by the weight of the air above that point.
In short: the air that surrounds the Earth creates atmospheric pressure and this pressure is determined by the collective weight of air molecules.
Air molecules at higher altitudes have fewer molecules pressing down on them from above and therefore experience lower pressure, while lower molecules have more force or pressure exerted on them by molecules piled on top of them and are more tightly packed together.
Atmospheric pressure is also known as barometric pressure because it is measured using a barometer.
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Let's see How Pressure Changes Affect the Weather?
In general, a mercury barometer can let you know if your immediate future will see clearing or stormy skies, or little change at all, based only on atmospheric pressure.
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★Here are a few examples of how to interpret barometric readings:
- When the air is dry, cool, and pleasant, the barometer reading rises.
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- In general, a rising barometer means improving weather.
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- In general, a falling barometer means worsening weather.
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- When atmospheric pressure drops suddenly, this usually indicates that a storm is on its way.
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- When atmospheric pressure remains steady, there will likely be no immediate change in the weather.
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