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Cyclones are large areas of swirling air with clouds and precipitation being formed inside.
Find out the secret of the unique beauty of travertine terraces.
Icebergs are blocks of frozen freshwater floating in the sea.
Waves play an important role in forming the coast.
Karst formations include dolines and dripstones.
Atmospherical nitrogen is bound by bacteria and used by living organisms in the form of...
This lesson presents deserts and their flora and fauna.
The most important types of local winds are the sea-land breeze, the mountain-valley...