Which of the following is true about atmospheric pressure?

It is the desnity of cloud cover in the atmosphere.

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It is the amount of water vapour in the atmosphere.

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It is the weight of air column above an area.

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It is the measure of wind speed.

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Solution

The correct option is C It is the weight of air column above an area.
Atmospheric pressure is defined as the force per unit area exerted against a surface by the weight of the air above that surface.

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Which of the following is true about atmospheric pressure?

The correct option is C It is the weight of air column above an area.Atmospheric pressure is defined as the force per unit area exerted against a surface by the weight of the air above that surface.

The correct option is C It is the weight of air column above an area.
Atmospheric pressure is defined as the force per unit area exerted against a surface by the weight of the air above that surface.