Which of the following statements is true about manure?

1.	Which of the following statements is true about manure?
A.	Provide only nitrogen to soil.
B.	It decreases the fertility of soil.
C.	It is formed from cow dung, cattle dung, plant residues.
D.	All the above
E.	None of these
Answer» D. All the above

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Which of the following statements is true about manure?

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