Multiple choice

The method of destroying harmful bacteria by heat is known as

  1. culturing

  2. fermentation

  3. fumigation

  4. heat killing

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

Fumigation is the process of using chemical gases (fumes) to destroy harmful bacteria, pests, or insects in enclosed spaces. The chemical fumes penetrate and kill the organisms. Fermentation is a biological process, culturing grows bacteria, and 'heat killing' is not a standard term.