Question

Water is safe for human consumption only when it is free of
a. floating substances
b. unwanted smells
c. micro organisms
d. all the above.

Answer 1

Answer:

ALL OF THE ABOVE

Explanation:

floating substances affects the purity and makes it undesirable

unwanted smells makes it dirty and impure

micro organisms cause waterborne diseases

Answer 2

Answer:

All of the above are the answer