Formation of stratovolcanoes

Stratovolcanoes consist of layers of volcanic ash, debris and lava.

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Folding (basic)

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

The phosphorus cycle

The phosphorus cycle describes the movement of phosphorus through the lithosphere,...

Exogenic forces

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

Types of soil (soil profiles)

This animation demonstrates different types of soil.

Snow line

Above a certain altitude snow does not melt, not even in summer.

Folding (intermediate)

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

Eroded fault-block mountains

We can come across the remains of the Variscan and Caledonian mountain systems almost anywhere...

Fascinating atmospheric phenomena

We can often observe spectacular atmospheric phenomena. Let's see how some of these are formed.

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