The atmosphere is the blanket of gases that surround a planet. Earth's atmosphere has evolved from being one filled with carbon dioxide and water vapor to one containing mainly nitrogen and oxygen.
The Earth's atmosphere is composed of several layers of gases that reach altitudes up to 6,200 miles above sea level. The lowest layer of the atmosphere is known as the troposphere, which reaches altitudes up to 11 miles.
Earth's atmosphere consists of a variety of gases, including nitrogen, oxygen, argon and carbon dioxide, along with tiny solid particles such as dust, pollen and plant particles. The atmosphere also contains a small amount of water vapor. It is divided into five distinc...
The atmosphere works as a place to contain the oxygen that is necessary for life, works as a blanket to shield the earth from radiation and helps to create the different types of weather that are felt on the Earth. The atmosphere also contains small amounts of carbon di...
The atmosphere derives heat from the sun, which emits radioactive waves towards it. This heat then spreads throughout the atmosphere via radiation, convection and conduction.
Earth's atmosphere is primarily composed of nitrogen and oxygen with water vapor comprising 0.25 percent of the atmosphere by mass. It has five layers: troposphere, stratosphere, mesosphere, thermosphere and exosphere.
Earth's atmosphere is important for several reasons: it supports the exchange of life-sustaining gases, filters sunlight, regulates temperature and even plays a role in the water cycle. The atmosphere contains five distinct layers. Its first layer, the stratosphere, is ...