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Convective precipitation differs from stratiform in that it

  • A.results from gentle ascent spread over a wide area
  • B.always produces a pronounced bright band on radar
  • C.is confined entirely to the tropics and nowhere else
  • D.falls from strong localised updraughts of metres per second

Answer: D

Vertical velocities of several metres per second support much larger particles. The mixing this produces prevents the sharp horizontal melting layer that gives the bright band. Vertical motion destroys the horizontal uniformity required.

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