What is an antibiotic? a) A substance that kills virus... | Science Class 9

Science Class 9 Why Do We Fall Ill

Asked by GIANSH GUPTA KHUNDKER · BIRLA BRAINIACS

What is an antibiotic?
a) A substance that kills viruses.
b) A chemical that kills bacteria by blocking their biochemical pathway.
c) A vaccine.
d) A type of nutrient.

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