Chapter 2 Class 9 Geography - Physical Features of India

What are coral polyps and how do they form reefs?


The Great Barrier Reef  - Teachoo.png

        Atoll Reef  - Teachoo.png
      Fringing Reef  - Teachoo.png

Answer to be written

  • Coral polyps are short-lived microscopic organisms that live in colonies and secrete calcium carbonate.  
  • They form reefs by depositing their secretion and skeletons in the form of three kinds of reefs: barrier reefs, fringing reefs, and atolls.
  • The Great Barrier Reef of Australia is a good example of the barrier reefs.
  • Atolls are circular or horse shoe-shaped coral reefs. 
  • Coral reefs act as natural barriers that protect coastlines from storms, waves, and erosion.
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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.