Volcanic activity

This animation demonstrates different types of volcanic eruptions.

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Layers of the ocean

Physical properties, as well as the flora and fauna of the ocean change with depth.

Folding (intermediate)

Lateral compressive forces cause rocks to form folds. This is how fold mountains are...


Waves play an important role in forming the coast.

Altitudinal zonation

In mountainous areas the climate, soil properties, the flora and fauna change...


Within the lethal embrace of deserts, life can only flourish because of large springs. Here...


Rocks are a composed of minerals. These minerals can often be found in their pure forms.

Aeolian landforms on coasts and steppes

Wind, as an external force, plays an important role in shaping coastal areas and steppes.

Oxygen cycle

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

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