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Assertion (A): The deep ocean is central to understanding climate change over centuries.
Reason (R): Its heat capacity is enormous and its response time is measured in centuries.

  • A.A is true but R is false
  • B.A is false but R is true
  • C.Both A and R are true, and R is the correct explanation of A
  • D.Both A and R are true, but R is not the correct explanation of A

Answer: C

Both are true and the reason gives the significance: heat taken up by the deep ocean delays the surface response to a forcing, so the full effect of a change is not seen for a very long time. Heat capacity is the reason.

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