Question

Dissolved air in natural water keeps it
(a) fresh
(b) is a source of respiration for water animals
(c) is a source of carbon dioxide for water plants
(d) all the above​

Answer 1

Explanation:

option D is the correct answer :)

Answer 2

Answer:

Option (D)

Explanation:

Because dissolved dissolved oxygen/air is necessary for good water quality. Oxygen is a necessary element to all forms of life.