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JAMB Biology 1981 Question 21

Question 21

Transport in Plants

The rate of transpiration of a leafy shoot would be highest under

  1. A.damp, cold, still air
  2. B.damp, warm, moving air
  3. C.dry, warm, moving air
  4. D.dry, cold, moving air
  5. E.dry, warm, still air
Show the answer and explanation

Answer: C (dry, warm, moving air)

Explanation

Dry air, warmth and wind all speed up evaporation of water from the leaves.