Why is atmospheric pressure in mountainous areas less than in valleys?

The surface of the Earth is at the bottom of the air ocean. A ball of air acts on everything on Earth, which means that atmospheric pressure is created. As the altitude increases, the thickness of the atmosphere decreases, and the atmospheric pressure decreases accordingly. At an elevation of eleven meters, atmospheric pressure will drop by 1 mm. rt. Art. Therefore, the pressure of the atmosphere decreases with height.



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