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1) Discuss the ideal conditions for formation of coral reefs. Also discuss the theories of coral-reef formation.(250 words)

TOPICSalient features of world’s physical geography.

1) Discuss the ideal conditions for formation of coral reefs. Also discuss the theories of coral-reef formation.(250 words)

Reference

Reference

Wikipedia

Why this question

In UPSC mains exam, question demanding a direct explanation and importance of a particular geographic entity/ phenomena are commonly asked. The issue is related to GS-1 syllabus under the following heading-

Salient features of world’s physical geography.

Key demand of the question.

the question wants us to describe the ideal environmental conditions for growth of coral reefs and then discuss the overall theories of coral reef formation.

Directive word

Discuss- we have to write in detail about all the key demand of the question but be concise and illustrative in our approach. Draw diagrams wherever possible.

Structure of the answer

Introduction- give a simple definition of coral reefs and mention their constituents.

Body-

A-discuss in points about the ideal conditions for coral reef growth- temperature, quality of water, depth of water etc.

B- discuss the main theories of coral reef formation- Darwin’s and D. Murray’s theories.

Conclusion- briefly mention the importance of coral reefs and threats faced by them.