1.

Fill in the blanks with most appropriate option. Bio-gas is an excellent fuel as it contains up to 75%  (i) lt burns without smoke, leaves no residue like ash in wood. lts heating capacity is (ii) . The slurry left behind is removed periodically and used as excellent manure, rich in (iii) and (iv) (i)(ii)(iii)(iv)(A) MethaneHigh Nitrogen Phosphorous(B) NitrogenLowMethanePhosphorous(C) MethaneLowNitrogenOxygen(D) OxygenHighNitrogenphosphorous

Answer»

The Correct option is (A)



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