Environmental Sciences, asked by vnivkar, 17 hours ago

proposed time duration for the water purification






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Answers

Answered by krishnenduk2008
1

Answer:

Explanation:

The water should sit for at least 30 minutes after adding the chemical to allow purification to occur. If using tablets, let the water sit for 30 minutes after the tablet has dissolved. It may take up to 4 hours to treat water contaminated with Cryptosporidium

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