Which is the driving force for the process of passive absorption of water in roots?

Step-by-step solution

Passive absorption of water by roots is driven by the transpiration pull created in the leaves. As water evaporates from the stomata during transpiration, a negative pressure or tension develops in the xylem vessels of the leaves. This tension is transmitted downwards through the continuous water column in the xylem to the roots, creating a suction force that pulls water from the soil into the root hairs. Root pressure, on the other hand, is an active process. Answer: Transpiration pull in leaves