Multiple choice

All of the following are extrinsic or external factors that affect human health, except

  1. unbalanced or inadequate diet

  2. disease-causing microorganisms

  3. malfunctioning of the immune system of the body

  4. environmental pollutants

  5. tobacco, alcohol and narcotic drugs
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct option as malfunctioning of the immune system of the body, i.e. allergy, is not an extrinsic or external factor that affects human health. It is an internal factor.

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