Which of the following is not farm yard manure?
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Cow dung
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Cow urine
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Mulch
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Waste straw
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Dairy wastes
C
Correct answer
Explanation
A mulch is a layer of material applied to the surface of an area of soil. Its purpose is to conserve moisture and to improve the fertility and health of the soil. A mulch is usually but not exclusively organic in nature. This is not a FYM.