Class 10th English VVI Objective Question Allergy 1. Substances causing a violent reaction to the human immune system are called. (A) Allergy (B) Allergents (C) Allergers (D) None of these Answer – D 2. A person has to exposed to be the particular for some to become allergic to it. (A) Sympton (B) Antigen (C) Allergen (D) […]