Question

Which of the following sources of pollution decrease the oxygen level of water? Select the two correct answers
A) toxic metals
B) radioactive substances
C) plant fertilizer
D) animal manure
E) gasoline

Answer 1

Answer:

The source of pollution that decreases the oxygen level of water are plant fertilizer and animal manure.

Explanation:

Plant fertilizer that is applied in the agricultural field when enter into the water body, causes water pollution which increases minerals into the water body and animal manure contain raw material which causes eutropication that means increase algal bloom. This indirectly  decreases oxygen availability into the water body.

Answer 2

Plant fertilizer and animal manure are the sources of pollution which decrease the oxygen level of water.

What is Pollution?

This is the introduction of contaminants or foreign bodies into the environment.

Plant fertilizer and animal manure leads to eutrophication and algal bloom as a result of the minerals present thereby decreasing the oxygen level.

Read more about Pollution here https://brainly.com/question/24704410

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