Which type of transpiration continues throughout day and night?
a)	Cuticular transpiration	b)	Lenticular transpiration
c)	Bark transpiration	d)	All of these

(d)

Transpiration can be categorised on the basis of plant surface and are of following types, stomatal transpiration, cuticular transpiration, lenticular transpiration and bark transpiration.

Out of them, stomatal transpiration depend upon the stomata of leaves and continue till the stomata remains open. While transpiration from cuticle, lenticels and bark continues throughout day and night