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SR : CH 2 Allergy — English कक्षा 10 — Question

Bihar BoardHindi Mediumकक्षा 10EnglishSR : CH 2 Allergy2 Marks
Question
What are allergens?
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Answer

Allergens are substances which are capable of producing allergy. They are found in our natural environment. Pollens, mold spores, house-dust mites animals dander and cockroaches are allergens.

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