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‘Catchment’ is?

  • A.Water collecting area
  • B.Having aerial extent
  • C.Contributes overland flow
  • D.All of the these

Answer: D

All three describe a catchment, so the answer is All of the these.

A catchment is the area that collects water from rain and delivers it to a stream or reservoir. It has an areal extent (printed 'aerial'), measured in hectares or square kilometres, bounded by the drainage divide. And rain falling on it contributes overland flow, which runs off to the outlet.

Each option is one feature of the catchment, so choosing only one is incomplete.

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