Earth's atmosphere is made up of several layers, each with its own characteristics. The troposphere is the lowest layer, where all weather occurs, and it contains the oxygen we breathe. Above the troposphere, the stratosphere contains the ozone layer, which protects life on Earth by absorbing harmful UV radiation.
Higher up, the mesosphere protects the planet from meteoroids by burning them up before they can reach the surface. The thermosphere and exosphere are the uppermost layers, where the atmosphere thins out, and space begins. Understanding these layers is crucial for studying weather patterns, climate change, and space exploration.