Question

30. Water potential inside the xylem at the top of a tall tree during the hot sunny day time
is.
(A) Always negative
(B) Always positive
(C) Always zero
(D) Sometimes positive and sometimes negative​

Answer 1

Answer:

Explain how water is moved to the tops of tall plants, such as the rattan palm. ... This creates a "transpiation pull" that draws water from the roots of the plant. This is maintained by the cohesion of the water molecules and the adhesion of water to the walls of the xylem.

Answer 2

d option

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