Question

As we go high in the mountains the atmospheric pressure:
1) Increases
2) Decreases
3) Remains Same
4) Can’t Say

Answer 1

Hint:One has usually swum in a swimming pool, when one goes deep in the water one feels a lot of pressure on the nose and on the head, this is due to because there is a lot of water above us and the water has weight that weight puts pressure on us.

Complete step by step solution:
Atmospheric pressure in layman terms is the pressure that is put by the atmosphere inside the region of Earth. There are many layers in earth’s atmosphere which are the Troposphere, stratosphere, mesosphere, ionosphere, etc. These layers are made up of air and as the layers go far away from the earth’s surface, they change their properties. The air which surrounds us has weight and it presses everything it touches. This pressure of air and the layers of the atmosphere that touches everything is known as atmospheric pressure. The earth’s gravity also pulls the atmosphere otherwise the atmosphere will go from earth and life won’t be possible. The instrument to measure the atmospheric pressure is known as a barometer.
As we go high in the mountains, we surpass few of the atmospheric layers that were earlier on us, so we don’t feel the weight or the pressure of those layers and that’s why as one goes high in the mountains the atmospheric pressure decreases.

Final Answer: Option “2” is correct. Therefore, as we go high in the mountains the atmospheric pressure decreases.

Note:The human body experiences about 15 pounds per square inch of air pressure pushing down in every part of the human body, it is natural to get crushed by the atmospheric pressure of the earth but we don’t get crushed this is because we generate equal amount of upthrust or pressure that negates the effect of atmospheric pressure.