Question

Types of water pollution sediment oxygen demannding wastes

Answer 1

hyy...

☆There are several classes of water pollutants. The first are disease-causing agents. These are bacteria, viruses, protozoa and parasitic worms that enter sewage systems and untreated waste.

☆A second category of water pollutants is oxygen-demanding wastes; wastes that can be decomposed by oxygen-requiring bacteria.
_______
hope it helps!!⭐