3. Chemical fertilizers consists of nitrogen, phosphorous and potash in the ratio of
_______.
A. 20:5:10 B. 20:10:10
C. 20:10:5 D. 20:20:5
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Explthe ignition of organic matter (e.g. hay or coal) without apparent cause, typically through heat generated internally by rapid ox
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Answer:
b is the answer i think so
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