Allowable disposable rate of application of sludge on land is determin

1.	Allowable disposable rate of application of sludge on land is determined by
A.	carbon content of sludge
B.	nitrogen content of sludge
C.	phosphorus content of sludge
D.	potassium content of sludge
Answer» C. phosphorus content of sludge

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Allowable disposable rate of application of sludge on land is determined by

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