Question

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

Answer 1

The order of arrangemrnt of products according to their descending importance is:
Penicillin-Biogas-Citric acid-Curd
Penicillin is the most important product for the welfare of human society. It is an antibiotic which is used for controlling various bacterial diseases. The second most important product is biogas. It is an eco-friendly source of energy. The next important product is citric acid which is used as a food preservative. The least important product is curd a food item obtained by the action of lactobacillus bacteria on milk.
Hence the product in the decreasing order of their importance are as follows:
Penicillin-Biogas-Citric acid-Curd