Earth's Atmosphere: Composition and Layers

Layer of gases held by gravity surrounding a planet.

Nitrogen (78%) and oxygen (21%).

The lowest layer of Earth's atmosphere, where weather occurs.

Layer containing the ozone layer, which absorbs UV radiation.

The coldest layer where meteors burn up.

Layer with increasing temperature due to solar radiation absorption; location of the ISS.

Outermost fading layer where gas molecules can escape into space.

Force exerted by the weight of the atmosphere.

Transfer of energy through electromagnetic waves.

Transfer of heat through the movement of fluids (air).

Horizontal transport of heat, moisture, or pollutants by wind.

Deflection of moving objects due to Earth's rotation.

State of the atmosphere at a specific time and place.

Long-term average of weather patterns in a region.

Visible masses of water droplets or ice crystals.

Any form of water falling from the atmosphere.

Movement of air relative to Earth's surface.

Large-scale movement of air around the Earth.

Circulation patterns in the tropics.

Narrow bands of strong winds in the upper atmosphere.

Substances harmful to health or the environment in the atmosphere.

Gases trapping heat in the atmosphere.