Mention two disadvantages of using animal dung directly as a fuel.
(N/A) $(i)$ Animal dung contains important nutrients that can be used as manure. When it is used directly as a fuel,these nutrients are completely lost due to oxidation.
$(ii)$ Combustion of animal dung produces a significant amount of smoke,which leads to air pollution.
$(ii)$ Combustion of animal dung produces a significant amount of smoke,which leads to air pollution.
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