A) Curtis
B) Steward
C) Anderson
D) J C Bose
Correct Answer: A
Solution :
Curtis (1926) called transpiration as necessary evil. Inspire of the various disadvantages the plants cannot avoid transpiration due to their peculiar internal structures particularly those of leaves. Their internal structures basically meant for gaseous exchange for respiration, photosynthesis etc; but during these plant cannot check the evaporation of water, therefore. Curds called it a necessary evil.
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