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Question
Which one of the following statements is not true about the subsidence theory of Coral reefs?
Options:
A .  Reef building starts from submarine plate form.
B .  Fringing reef, barrier reef and atolls are successive stages of coral reef development.
C .  The theory has been postulated by Charles Darwin.
D .  According to the theory coral polyps grow both in shallow and deep oceanic waters.
Answer: Option D
Answer: (d)
Coral polyps are tiny, soft-bodied organisms related to sea anemones and jellyfish. At their base is a hard, protective limestone skeleton called a calicle, which forms the structure of coral reefs.
Reefs begin when a polyp attaches itself to a rock on the seafloor, then divides, or buds, into thousands of clones. As per darwin’s theory polyps grow only in shallow ocean water.

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