Question

The sewage and sludge contains an average NPK content

of (A) 2.0 to 3.0% N. 1.0% P2 O3 and 1.0% K2 O (B) 2.0 to 4.0% N. 2.0% P2 O3 and 1.0% K2 O (C) 3.0 to 6.0% N. 2.0% P2 O3 and 1.0% K2 O (D) 3.0 to 6.0% N. 2.0% P2 O3 and 2.0% K2 O (E) None of these

A A

B B

C C

D D

E E

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The sewage and sludge contains an average NPK content

Solution