Multiple choice general knowledge

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

  1. 30

  2. 40

  3. 50

  4. 60

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Coughs can expel air at very high speeds, with 60 mph being the maximum recorded velocity. This is why coughs can propel droplets significant distances.