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Class 9ScienceWHY DO WE FALL ILL?Mix Example - WHY DO WE FALL ILL?
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You are aware of the $Polio$ $Eradication$ $Programme$ in your city. Children are vaccinated because:

  • A
    vaccination kills the polio-causing microorganisms
  • B
    it prevents the entry of the polio-causing organism
  • C
    all of the above
  • D
    it creates immunity in the body
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Class 9

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WHY DO WE FALL ILL?

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Mix Example - WHY DO WE FALL ILL?

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