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Why Do We Fall Ill

9th Class (CBSE) Science: Why Do We Fall Ill Quiz

NCERT 9th Class (CBSE) Science: Why Do We Fall Ill Quiz

22 Multiple Choice Questions related to NCERT 9th Class (CBSE) Science: Why Do We Fall Ill Quiz:

  • Health means a state of physical, mental and social well-being.
  • Symptoms of disease are the signs of a disease which indicates the presence of a particular disease.
  • Those diseases which last for very short period of time are called acute diseases. Example, headache and cold.
  • The organisms that spread or carry pathogens from one place to another, from infected person to healthy person is called vector. Example: mosquito, housefly etc.

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