You who like to travel certainly enjoy the mountain area. There, the air is still very fresh and cool. Although sometimes the air is very cold, especially in the morning and evening, still make people like the cool air there. By the way why the air in the mountains can be cold huh?
There are several explanations related to this, but they all relate to the height of the mountains themselves. In the earth's atmosphere, there is always a mass of air rising upward. While the higher a place, the atmosphere is getting thinner. As the air enters an area of diminished atmospheres, the air tends to expand.
The expansion causes the air to exert the energy it has to dispel the other air that has filled the place there so that it can get room to expand. As a result, after that the air becomes depleted of energy, and the movement of the air molecule itself becomes slowed down. Keep in mind when the movement of air molecules nimbly, the air will become hot, while when the movement is not nimble, the air will be cold. As the molecular movement slows down, the rising air temperatures become cool. The higher the place, the greater the air expansion, so the air becomes cooler.
Another thing that also causes air in the cold mountains is geothermal. We know that the earth absorbs heat from the sunlight that penetrates our atmosphere. Well, once the heat is absorbed by the earth, turn the earth that emits the heat it absorbs it. The closer to the surface of the earth, the greater the heat it receives. Therefore, it is clear that in the mountains, the heat received is much smaller.
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