Toddy is

$I.$ a traditional drink of Southern India

$II.$ made by fermentation of sap from palm trees

Which of the statements given above about toddy is/are correct?

Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct?

A good producer of citric acid is

_________ are produced by yeast and act by competitively inhibiting the enzyme responsible for synthesis of cholesterol.

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