What does transpiration mean?
- Athe evaporation of water vapour from a leaf due to the diffusion of water from an area of low water potential to high water potential
- Bthe loss of water vapour from a plant to its environment by diffusion down a water potential gradient
- Cthe movement of water from root to leaf due to the adhesion of water molecules to one another
- Dthe uptake of water by plant roots by movement of water down a continuous water potential gradient from air to soil