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State whether the following is true or false.
Only a very small number of giant nuclei per litre is needed to influence rain formation.

  • A.False only at small scales
  • B.True
  • C.False
  • D.True only at large scales

Answer: B

Because collection accelerates so strongly with size, a handful of early collectors can seed the whole process. Their scarcity is more than compensated by the speed at which they grow. Collection accelerates as the fourth power of collector radius.

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