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The desert

The desert

One third of the continents is covered with desert. Today, desertification is a growing problem.

03:01

Geography

Keywords

desert, Sahara, desertification, sand, sandstorm, deflation, dune, oasis, Arabic, camel, external forces, weathering, fragmentation, wind, nature, environmental protection, geography

On-screen labels

Water balance | in the red, Annual rainfall | below 250 mm, Daily temperature range | big, External forces | chemical and physical, Physical weathering, Chemical weathering, Periodic surface runoff, Wind, Transport | deflation basin, Accumulation | dune, Wandering | transformation, Low hummus content, Scarce population | oasis, 60,000 sq km
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