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A typical drizzle drop has a diameter of about

  • A.0.02 millimetres
  • B.20 millimetres
  • C.0.2 millimetres
  • D.2 millimetres

Answer: C

The conventional boundary between drizzle and rain is placed near half a millimetre. Below about a tenth of a millimetre the particle is better regarded as a cloud droplet still. The boundaries are conventions rather than physical transitions.

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