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Discussion

Precipitation variability is generally greatest

  • A.in the maritime mid-latitudes
  • B.over the wide open ocean
  • C.in arid and semi-arid regions
  • D.in the equatorial rainforests

Answer: C

Where the annual total is small, a single storm can represent a large fraction of it. This is why drought is a recurrent feature of semi-arid regions rather than a rare event. Relative variability rises as totals fall.

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