Multiple choice

Which of the following activities is not performed by microorganisms?

  1. Decomposition of dead and waste materials

  2. Preparation of medicines, vaccines, etc.

  3. Decomposition of plastic bags, plastic bottles, plastic toys, etc.

  4. Preparation of breads, pastries, cakes, wines and alcohol
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Microorganisms decompose dead organic matter. These are used in the preparation of medicines and also in the baking industry. Plastic goods are non-biodegradable and cannot be acted upon by microorganisms.

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