Question

Why might common sawdust be dangerous? because arsenic compounds are widely used in wood preservatives because sawdust can be inhaled because sawdust contains harmful germs because sawdust might cause allergies

Answer 1

because sawdust can be inhaled to cause you to choke  

Answer 2

The best answer would be that it may be inhaled which can cause serous issues for the lungs
~Hope this helped!!~