Multiple choice question III — task. Science CBSE, Class 7.

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Why do we often sneeze when we inhale a lot of dust-laden air?

1. Why do we typically sneeze when inhaling dust-laden air?

To clear nasal passages for smelling
To increase oxygen intake
To reduce the sensation of irritation
To expel foreign particles

2. What triggers sneezing when inhaling dust-laden air?

Irritation of nasal cavity lining
Relaxation of respiratory muscles
Stimulating taste buds
Clearing the throat

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