Atmospheric pressure at the top of mount everest.

Mt. Everest (elevation of 8848 m), the air pressure is 253 mmHg. The summit of Mt. Everest, the highest elevation on earth, where the pressure averages around 300 mb." As altitude increases, the air becomes thinner, the density of air decreases, and the pressure of the air decreases as wel

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

hope this ! this is not copied! search it up, it's free of plagiarism!