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- Introduction of Microbes in Human Welfare
Mention a product of human welfare obtained with the help of each one of the following microbes :
(b) Saccharomyces cerevisiae
(c) Propionibacterium shermanii
(d) Aspergillus niger
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