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Life in the Deserts — Social Studies STD 7 — Question

CBSE BoardEnglish MediumSTD 7Social StudiesLife in the Deserts5 Marks
Question
How are depressions and oasis formed?
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Answer

  1. Depressions are formed when the wind blows away the sand. In the depression where underground water reaches the surface, an oasis is formed.
  2. These areas are fertile.
  3. People may settle around these water bodies and grow date palms and other crops.
  4. Sometimes the oasis may be abnormally large.Tafilalet oasis in Morocco is a large oasis with an area of about 13,000sq.km.

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