Question

Name the major driving force in the movement of water in the xylem ?

Answer 1

Explanation:

Transpiration is the loss of water from the plant through evaporation at the leaf surface. It is the main driver of water movement in the xylem. Transpiration is caused by the evaporation of water at the leaf, or atmosphere interface; it creates negative pressure (tension) equivalent to –2 MPa at the leaf surface.

Answer 2

Transpiration.

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