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Andre45 [30]
3 years ago
11

What is air pressure

Biology
1 answer:
Ahat [919]3 years ago
6 0

Answer:

air pressure or atmospheric pressure is referred to the force exerted on a particular surface by air present above due to the gravitational pull of the earth.

Explanation:

in simple terms -air has weight and it constantly exerts pressure against everything in the surrounding. This pressure uses gravitational pull of the earth to exert its force on or over a surface. This is called atmospheric or air pressure. It can be measured by using barometer. The unit of measurement is atm (atmosphere)

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Answer:  B. secrete enzymes that kill bacteria

Explanation:

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