Question

in developed countries, what is/are the source(s) of water pollution? *
○ residential runoff
○ industrial runoff
○ agricultural runoff
○ all of the above choices are correct
why is thermal pollution a problem? *

Explanation:

In developed countries, residential runoff can carry household - chemicals and waste, industrial runoff has heavy metals and chemicals from factories, and agricultural runoff contains pesticides, fertilizers, and soil particles. All these contribute to water pollution.

Answer:

D. all of the above choices are correct