The troposphere is the closest and lowest layer of the Earth’s atmosphere. It is the layer where all weather changes take place and cloud formation occurs. The troposphere lies between the Earth (lithosphere) and the stratosphere (10-18 km above the sea level). This layer makes about 70-80% of the total atmosphere. This layer carries the densest composition of gases and atmospheric molecules. As we move above in the troposphere from the Earth, the temperature decreases. This feature of decreasing temperature differentiates the troposphere from the stratosphere. The abundance of oxygen in this layer supports life.
Ozone Layer: It is the protective layer blanketing the Earth and protecting it from the harmful UV rays.
