Greenhouse effect

Human activity increases the greenhouse effect and leads to global warming.

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An earthquake is one of the most devastating natural phenomena.

Tropical cyclones

Cyclones are large areas of swirling air with clouds and precipitation being formed inside.

Tectonic plates

Tectonic plates can move in relation to each other.

The Tundra: a green-edged icy wasteland

Is the tundra region as cold and deserted as many people think?

Natural gas and petroleum

Natural gas and petroleum are among the most important sources of energy and raw materials today.

The water cycle (intermediate)

Water on Earth is in a continuous state of change. The water cycle includes processes...

Coal formation

This video presents the different stages of coal formation.

Types of soil (soil profiles)

This animation demonstrates different types of soil.

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