The layers of the atmosphere are the exosphere, thermosphere, mesosphere, stratosphere and troposphere. The troposphere is the layer that is closest to the surface of the Earth, whereas the exosphere is the furthest laye... More » Science Earth Science Atmosphere

The middle layer of the sun's atmosphere is known as the chromosphere. The chromosphere lies between layers of the sun known as the photosphere and the corona. More » Science Earth Science Geology

Humans live in the layer of the atmosphere referred to as the troposphere. Most of the mass of the atmosphere can be found in the troposphere. More »

The atmosphere is divided into four layers because each layer has a distinctive temperature gradient. The four layers of the atmosphere are the troposphere, the stratosphere, the mesosphere and the thermosphere. Sometime... More »

The ozone layer, which is part of the stratosphere, is comprised of the major atmospheric gases nitrogen, oxygen and argon, but also contains a significantly higher concentration of the trace gas ozone than the other lay... More »

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... More »

The layers of gas that surround the Earth are collectively referred to as the atmosphere. The atmosphere is subdivided into five layers: the troposphere, stratosphere, mesosphere, thermosphere and exosphere. The outermos... More »