Question

What common water pollution caused mainly by power plants and factories results in the death of many aquatic organisms?
A) Heat
B) Oil Spills
C) Nitrates
D) Silt ad Suspended Solids

Answer 1

First of all this question is not really chemistry and more like biology.

To help answer your question, what do you think of the answers is made by power plants and factories? Using this logic you can eliminate silt and possibly oil heat and nitrates. The only solution left is oil spills or any other chemical substance that changes the chemical and physical properties of the water environment there.