Exogenic forces

The surface of the Earth has been formed into its present state both by external and internal forces. External forces shape the surface from the outside; hence, the name.

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The weather forecast

The weather can be forecast with different meteorological instruments.

Oxygen cycle

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

Sedimentary rock

Did you know that about 75% of the land on our planet is covered with sedimentary rock?

Oasis

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

Mountain climate zones

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

Warm front, cold front

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

Icebergs

Icebergs are small or large blocks of frozen freshwater floating in the sea.

Solar eclipse and lunar eclipse

We can observe quite interesting astronomical phenomena when the Earth, the Sun and the Moon align.

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