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Vertical forces can break up layers of rock into fault blocks, which then move vertically along...
The animation presents the largest mountains, plains, rivers, lakes and deserts of the Earth.
A geyser is a spring characterised by intermittent discharge of water and steam.
Rivers play an important role in shaping the Earth's surface: they cause erosion as well as...
The rise and drop of sea levels caused by the gravitational force of the Moon.
The dissolution of limestone results in the development of karst formations.
Human activity increases the greenhouse effect and leads to global warming.
One third of the continents is covered with desert. Today, desertification is a growing problem.