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Which among the following has postulated the Subsidence Theory related to coral reef ?

  • A.Dally
  • B.Agassiz
  • C.Darwin
  • D.Davis

Answer: C

The subsidence theory of coral reef formation was put forward by Charles Darwin after his voyage on the Beagle. He held that fringing reefs grow upward as the volcanic island sinks slowly, turning into barrier reefs and finally into an atoll. Daly proposed the glacial control theory, in which sea level changes during the ice age were the cause. Agassiz held that reefs grow on submarine platforms, and Davis supported Darwin but is not the author of the theory.

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