Warm front, cold front

Cold and warm fronts are formed where bodies of cold and warm air meet.

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The Jovian planets

The four outer planets (Jupiter, Saturn, Neptune and Uranus) do not have solid surfaces, thus...

Mountain climate zones

The decisive factor that determines the climate zones of mountains is the altitude above sea level.

Tornadoes

Short-lived but extremely powerful tornadoes can cause a great deal of damage.

Exogenic forces

The surface of the Earth has been formed into its present state both by external and internal...

The process of physical and chemical weathering

Upon physical weathering the rock only falls into pieces, whereas during chemical weathering its...

Wind at the beach

Sea and land breeze form because of the differing warming of land and sea.

The subtropics

The subtropics are located between the tropical and temperate zones, between 23.5° and 40°...

Oxygen cycle

The oxygen cycle describes the movement of oxygen within its three main reservoirs.

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