The rock cycle

Due to the effect of both exogenic and endogenic forces, rocks constantly change. This is called the rock cycle.

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

The water cycle (basic)

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

The Gregorian calendar

Developed nearly 500 years ago, it is a variant of the Julian calendar. Today it is the most...

Warm front, cold front

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


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Taiga climate

Among the climate zones with the greatest extremes, the taiga only formed in the Northern...

Topography of the Earth

The animation presents the largest mountains, plains, rivers, lakes and deserts of the Earth.

The weather forecast

The weather can be forecast with different meteorological instruments.

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