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Roughly what fraction of global precipitation falls over the oceans?

  • A.about one half
  • B.about three quarters
  • C.about one quarter
  • D.about one tenth

Answer: B

Oceans cover some seventy per cent of the surface and evaporation over them is greater still. The sparseness of oceanic observations is why satellite measurement mattered so much. Ocean rainfall was long the least well observed component.

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