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0 votes
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in Environmental Science by (144k points)

What is denitrification? 

I. It prevents the discharge of nitrates in soil, and stops ground water pollution with nutrients. 

II. In this solids are separated from the liquid 

III. In this sewage goes through many chambers and chemical processes which reduce its toxicity. 

(a) I & II (b) Only I (c) II & III (d) All the above

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1 Answer

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by (138k points)

The Right option is :(b) Only I

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