Define transpiration

Transpiration is a process where water is constantly evaporating from the leaves surfaces. Transpiration begins with the evaporation of water from cells inside the leaf, The water vapour formed then defuses through the air spaces in spongy mesophyll and exits the leaf through the stomata Now water passes from the xylem into the leaf to replace the water that’s been lost Finally water is drawn into the root hair cells and up the xylem vessels to leaf