Question

Fill up the blanks by selecting the correct option.
(i) Biogas is a mixture of gases which predominantly contains______and is used as_______
(ii) Methanogens are commonly found in the__________during sewage treatment.
(iii) ___________species are free-living fungi and effective biocontrol agents of several plant pathogens.

Answer 1

i)methane, fuel to make heat and light

ii)marsh gas of wetlands

iii)yeast