passwella.
Menu

JAMB Biology 1991 Question 24

Question 24

Transport in Plants

Which of the following can bring about the greatest increase in the rate of transpiration?

  1. A.Increased humidity
  2. B.Reduced temperature
  3. C.Reduced wind speed
  4. D.Reduced humidity
Show the answer and explanation

Answer: D (Reduced humidity)

Explanation

Dry air (low humidity) makes water vapour diffuse out of leaves faster; the other three slow transpiration down.