Multiple choice general knowledge

Refrigerators keep food unspoiled because

  1. at its low temperature, bacteria and moulds are inactive

  2. at its low temperature, the germs are killed

  3. at its low temperature, the germs are frozen

  4. it sterilises the food
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A Correct answer
Explanation

Refrigeration slows down microbial growth (bacteria and molds) by lowering temperature to around 4°C, but it doesn't kill germs or sterilize food. At low temperatures, most microbes become dormant or multiply very slowly, significantly extending food's shelf life without eliminating microorganisms.

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