Q. Choose the correct statement :

Q. Choose the correct statement :

(a) Transpiration does not perform evaporative cooling of leaf surface.

(b) PMA is a fungicide and an antitranspirant also .

(c) Blue light inhibits transpiration.

(d) Transpiration decreases when the relative humidity is low .

Solution :

Correct option : B  PMA (Phenyl Mercuric Acetate) is a fungicide as well as an antitranspirant
PMA (Phenylmercuric acetate) is a fungicide as well as an antitranspirant.