Question

what is atmospheric pressure ? as we go up what will happen to this

Answer 1

Answer:

Atmospheric Pressure is the pressure applied by the weight of the column of all the gases, above us, in our atmosphere. As we move up, the amount of gases yet above us and hence the height of the column of the gases keeps decreasing. Therefore, the atmospheric pressure keeps decreasing as we go up in the sky

Explanation:

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Answer 2

Pressure with Height: pressure decreases with increasing altitude. The pressure at any level in the atmosphere may be interpreted as the total weight of the air above a unit area at any elevation. At higher elevations, there are fewer air molecules above a given surface than a similar surface at lower levels.