Earth's atmosphere refers to a mixture of different gases around the earth, which the earth holds by its gravitational force. It is also called the atmosphere. It protects living things on earth by absorbing ultraviolet rays from the sun. It warms the surface by retaining heat (the greenhouse effect) and lowers the night temperature compared to the day.The mass of the atmosphere is about 5 × 1018 kg, three quarters of which are about 11 kilometers (36,000 feet 6.6 miles) above the surface. At 100 kilometers (62 miles), or 1.57% of the Earth's radius, it is often used as the boundary between the atmosphere and space. Used as a boundary. Atmospheric effects are observed when a spacecraft travels at an altitude of about 120 km (65 miles) above the Kerman line. The atmosphere can be divided into several levels based on features such as temperature and structure.
Practicing the Earth's atmosphere and its processes is called atmospheric science or aerology.