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What can happen when untreated sewage contaminates water?

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User Matheus
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2 Answers

2 votes

Answer: Bacteria and viruses can spread.

Explanation: I just took the test and got it righ:)

answered
User Ken Kin
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4 votes
Poulotion will spread causing water to be contaminated and un drinkable
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User Alex Veleshko
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