In the context of water pollution, _____ requires dissolved oxygen in order to be transformed into carbon dioxide, water, phosphates, nitrates, and certain plant nutrients.
A) eutrophication
B) organic sewage
C) an infectious agent
D) a radioactive substance

Question

Quizplus · Accepted Answer

Organic sewage requires dissolved oxygen to be broken down by aerobic bacteria into less harmful substances such as carbon dioxide, water, phosphates, nitrates, and nutrients beneficial for plant growth. This biological decomposition process is essential for the natural purification of water bodies contaminated with organic waste.

In the Context of Water Pollution, _____ Requires Dissolved Oxygen