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The rise and drop of sea levels caused by the gravitational force of the Moon.
This animation demonstrates the most important relief features, surface waters and their...
On a geological time scale lakes are short-lived.
Karst formations include dolines and dripstones.
The most important types of local winds are the sea-land breeze, the mountain-valley...
The dissolution of limestone results in the development of karst formations.
One third of the continents is covered with desert. Today, desertification is a growing problem.
A geyser is a spring characterised by intermittent discharge of water and steam.