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The method of food preservation by using certain chemical substances is called chemical preservation. Sodium benzoate is used as a preservative.
The bread or idli dough rises because of
The process of conversion of sugar into alcohol is called
Match the following option.
Can microorganisms be seen with the naked eye? If not, how can they be seen?
What are the major groups of microorganisms?
Name the microorganisms which can fix atmospheric nitrogen in the soil.
Write 10 lines on the usefulness of microorganisms in our lives.
Write a short paragraph on the harms caused by microorganisms.
What are antibiotics? What precautions must be taken while taking antibiotics?
What are micro-organisms?
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