Multiple choice general knowledge

A cough releases an explosive charge of air that moves at speeds up to -- mph.

  1. 120

  2. 200

  3. 150

  4. 60
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A cough can expel air at speeds up to 60 mph (about 96 km/h). This explosive force helps clear irritants and mucus from the respiratory tract effectively.

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