Multiple choice

What is fermentation?

  1. Action of rhizobium inside the nodule.

  2. Cleaning up of wastes in water by microbes.

  3. Chemicals from one microbe being effective against a harmful microbe.

  4. Conversion of sugar into alcohol.

  5. Transmission of disease from one person to another by an insect.

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Conversion of sugar into alcohol by the action of microbes is called fermentation.