Answer the questions — task. Science State Board, Class 8.

PDF chapter test TRY NOW

1. Choose the option which exactly describes what is fermentation:

This process of releasing the nitrogen back into the atmosphere from the dead plants and animals by microorganisms
The process of converting sugar into alcohol with the help of a microorganism
The process of converting harmful substances into non-toxic substances with the help of a microorganism

2. Choose a food product that acts as a preservative

Did you find an error?

5. Answer the questions