how is transpiration useful
The water evaporates through the stomata present on the s â¦ urface of the leaves by the process of transpiration. The evaporation of water from leaves generates a suction pull (the same that you produce when you suck water through a straw) which can pull water to great heights in the tall trees.s water transpires from the leaves into the atmosphere it pulls on water that had osmotically entered the roots and thus water is puled all the way up the plant; from the roo â¦ ts to the leaves. Transpiration is an essential evil in the plants which takes place during gaseous exchange. + 7 others found this useful.