troposferden
The troposphere is the lowest layer of Earth's atmosphere, extending from the Earth's surface up to an average altitude of about 7 to 15 kilometers. This is where almost all weather phenomena occur, including clouds, rain, snow, and storms. The temperature generally decreases with altitude within the troposphere, a phenomenon known as the environmental lapse rate. This cooling is due to the fact that the troposphere is primarily heated from below by the Earth's surface, which absorbs solar radiation. As you move higher, the air becomes less dense and receives less heat. The top boundary of the troposphere is called the tropopause, a transitional zone where the temperature stops decreasing and begins to increase in the stratosphere above. The thickness of the troposphere varies with latitude and season, being thicker at the equator and thinner at the poles. Air pressure also decreases significantly with altitude within this layer.