|Better Farming Series 28 - Water: Where Water Comes from (FAO, 1981, 31 p.)|
|Why we study water|
22. Water vapour is also given off by plants.
23. Plants use the water in the ground to live and grow, and as they live they breathe and give off water vapour from stems and leaves.
Plants use water
24. This is called transpiration.
25. Like vapour given off by evaporation, the water vapour from plants rises into the air to form new clouds.