Arrange the following in the decreasing order (most important first) of their importance, for the welfare of human society. Give reasons for your answer.

Biogas, Citric acid, Penicillin and Curd

Choose correct sentences.

$(i)$ Dosa and Idli is fermented by yeast.

$(ii)$ Saccharomyces cereviceae is a yeast.

$(iii)$ $LAB$ increase quality of vitamin $B_{12}$.

$(iv)$ Whisky and brandy are fermented beverages which produced without distillation.

Read the following statement having two blanks $(A$ and $B)$

A drug used for …$A$… patients is obtained from a species of the organism …$B$…. It helps in clearing blood clots inside the blood vessels.

The one correct option for the two blanks are

Identify fungi.

Energy cropping is