Why do we fall ill? Most important One words with explanation Class 9th

Class : 9th
Subject : Science
Chapter : 13th
Topic : Why do fall Ill?
Question type : one word and mcqs
with explanation

Q. Why do we fall ill?
Answer : Whenever the normal working of our body system gets disturbed, we feel sick. It can happen when a bacterium, virus, etc, enters our body or because of unhealthy living practices like lack of exercise or intake of drugs/excessive sugar/salt.

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Why do we fall ill?Most important one word questionsClass