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GS Geography Physical Geography of World
Q.

The-coral-reefs-are-the-marine-counterparts-of:
Explanation:

ANS.-(B)-
The-term-“coral-reef”-generally-refers-to-a-marine-ecosystem-in-which-the-main-organisms-are-corals-that-house-algal-symbionts-within-their-tissues.-These-ecosystems-require:-1)-fully-marine-waters;-2)-warm-temperatures;-and-3)-ample-sunlight.-They-are-therefore-restricted-to-shallow-waters-of-tropical-and-subtropical-regions.

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