Given below are two statements. In the light of the above statements, choose the most appropriate answer from the options given below.
Statement I:Allergens are substances that activate the immune system.
Statement II:The concentration of allergens in an indoor environment can be a thousand times higher than in the air outside.
ABoth Statement I and Statement II are true ✓ Correct
BBoth Statement I and Statement II are false
CStatement I is true but Statement II is false
DStatement I is false but Statement II is true
Correct answer: (A) Both Statement I and Statement II are true
Explanation
Statement 1 is correct, as allergens are substances that activate the immune system.
They trigger responses like sneezing, itching and inflammation in sensitive people.
Statement 2 is also correct, since indoor allergen levels can be far higher than in outdoor air.
Poor ventilation lets dust mites, mould and pet dander build up indoors.
Both statements accurately describe allergens and their indoor concentration.
Indoor air pollution is a major health concern given the time people spend indoors.
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