extra question of chapter 13 class 9 science
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An aspect of health, which deals with the well-being (physical, mental and social) of people of a community is called community health. Q2. How is a disease identified? ...
A doctor identifies a disease by its symptoms and signs. Q3. Name the causative organism of cholera. ...
Vibrio cholerae. Q4. ...
Peptic ulcers. Q5.
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