Question

water is a source of ____________ for chemical reactions in cells.
(a) hydrogen atoms
(b) oxygen atoms
(c) energy
both (a) and (b)
(a), (b), and (c).

part d
which statement is true of waters tensile strength?
(a) it results from hydrogen bonding.
(b) it helps to pull water through plants.
(c) it involves both cohesion and adhesion.
both (a) and (b).
(a), (b), and (c).

Explanation:

Water has the chemical formula H₂O, providing hydrogen and oxygen atoms for cellular chemical - reactions. Its tensile strength is due to hydrogen bonding, helps in water transport in plants, and involves cohesion and adhesion.

Answer:

For the first question: D. Both (a) and (b)
For the second question: E. (a), (b), and (c)