What is the first layer of the atmosphere?
The first layer of the Earth’s atmosphere is known as the troposphere. It is the lowest and densest layer, extending from the Earth’s surface up to an average height of about 7 to 20 kilometers (4 to 12 miles), depending on the latitude. The troposphere is where most weather phenomena occur, including clouds, precipitation, and wind patterns. This layer is characterized by a decrease in temperature with increasing altitude, which is a result of the absorption of solar radiation by the Earth’s surface and the subsequent release of heat into the air. The troposphere is home to approximately 75% of the total mass of the atmosphere and contains most of the water vapor, which is crucial for weather and climate processes.
