1.

Assertion(A): Public hygiene is one basic key to the prevention ofinfectious diseases.Reason(R): Garbage heaps,polluted water,foods exposed to dust andfiles are the chief sources of disease-Causing organisms.(a) Both A and R are true and R is correct explanation of the assertion(b) Both A and R are true, but R is not the correct explanation of the assertion(c) A is true but R is false(d) A is false but R is true

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ANSWER:

Both A and B are CORRECT



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