Multiple choice

Which of the following is the best method to kill germs present in water?

  1. Adding salt to water

  2. Keeping water in a closed lid container

  3. Boiling the water

  4. Keeping water in sunlight

  5. Freezing water

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

Boiling is the best method to kill germs present in water. So this is the right answer.