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State whether the following is true or false.
Fog drip can be a significant water input in some montane forests.

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

Answer: C

Correct answer: True

Where a montane forest stands in persistent cloud, droplets are intercepted by leaves and needles, coalesce and drip to the ground. In some cloud forests this occult precipitation contributes a substantial fraction of the annual water input - sometimes exceeding the measured rainfall - and a standard rain gauge in the open records almost none of it, which is why clearing such forest can reduce streamflow.

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