Microbes in Human Welfare

The inoculum is added to the fresh milk in order to convert milk into curd, the term 'inoculum' here refers to
Discuss the role of fungi as biofertilizers.
Match column I with column II and select the correct option from the given codes.
Column IColumn II
A.Aspergillus niger(i)Ethanol
B.Clostridium butylicum(ii)Statins
C.Saccharomyces cerevisiae(iii)Citric acid
D.Trichoderma polysporum(iv)Butyric acid
E.Monascus purpureus(v)Cyclosporin
How is Azolla helpful as biofertilizer?
Energy value of biogas is lower than that of organic matter.