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.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.