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Rainfall intensity is conventionally expressed in

  • A.kilograms per second
  • B.drops per cubic metre
  • C.millimetres per hour
  • D.millimetres per square metre

Answer: C

The figure is the depth of water that would accumulate on a flat impermeable surface in an hour. It is independent of the area considered, which is what makes it a useful measure. The same rate over a larger area simply delivers more water.

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