Atmosphere

The mass of air surrounding the Earth.

The atmosphere consists of nitrogen (78%), oxygen (21%), and traces of other gases such as argon, helium, carbon dioxide, and ozone.

The atmosphere plays an important role in the protection of life on Earth; it absorbs ultraviolet solar radiation and reduces temperature extremes between day and night.

Source: GreenFacts

The atmosphere is divided into such layers as the troposphere and the stratosphere.

Source: based on Harcourt School publishers 

Stratosphere - Troposphere

Deutsch: Atmosphäre
Español: Atmósfera
Français: Atmosphère
Nederlands: Atmosfeer

Static Fields

Climate Change

Arctic Climate Change

Forests

Desertification