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

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

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

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