Question

Which of the following is major source of water pollution?
(a) Industrial Waste
(b) Untreated sewage
(c) Use of fertilizers
(d) Toxic materials

Answer 1

Answer:

All of these are correct

Answer 2

Answer:

(b) Untreated sewage

Explanation:

There are a lot of reasons to get water polluted. Many human activities lead to water pollution. As the four options are given in the question, industrial waste, untreated sewage, use of fertilizers and toxic materials, they all responsible for the water pollution. Because in some way they all are responsible for water pollution. But untreated sewage is the most dangerous for the water, because, all industrial waste, toxic materials, and fertilizers mixed to the water through sewage.