1. | size of the stomatal aperture |
2. | distribution of stomata on the upper and lower epidermis |
3. | cohesion and adhesion between water molecules |
4. | root pressure |
A column of water within xylem vessels of tall trees does not break under its weight because of?
1. Dissolved sugar in water
2. Tensile strength of water
3. Lignification of xylem vessels
4. Positive root pressure