Question

Why will discharge of sewage wastes into lakes and rivers having abundant varieties of fish eventually eliminate much of the diversity of fish?
A.) The amount of oxygen available will be markedly reduced.

B.) The waters will become turbid (cloudy), making it difficult for the fish to find their prey.

C.) The waters will be excessively heated with thermal pollution.

D.) The number of spots where fish can lay their eggs will be reduced.

Answer 1

The waters will be excessively heated with thermal pollution