Question

What is air pressure​

Answer 1

Explanation:

Air pressure is the weight of air molecules pressing down on the Earth. The pressure of the air molecules changes as you move upward from sea level into the atmosphere. The highest pressure is at sea level where the density of the air molecules is the greatest.

Meteorologists use barometers to measure the pressure of the air when making weather forecasts and studying weather patterns. Barometric pressure given in weather reports is giving the barometric reading in either inches of centimeters. Pressure on the barometer moves the column of mercury in a cylinder upward or downward. Readings of barometric pressure are taken by looking at the markings on the outside of the glass cylinder. Barometers are calibrated with inches or centimeters

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Answer 2

Answer:

Explanation:

We are surrounded by a thick envelope of air called the atmosphere. This atmosphere exerts a pressure, called atmospheric pressure. Also known as air pressure