Determine the relative height of the hill if the difference in atmospheric pressure at the foot and top is 6 mm

We must proceed from the fact that when rising to 10.5 meters in the troposphere, the pressure becomes 1 mmHg. less column. The higher the object, the less air mass above it, therefore its pressure and weight are less. If the difference in pressure at the top and at the foot of 6 mm Hg, then the hill has a height equal to 10.5 meters × 6 mm Hg. St. = 63 meters.