You are presented with the quiz "What spread by wind has a negative impact on the respiratory system?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "amold spore has a negative impact on the respiratory system" and "blue Mold Blue mold is caused by a fungus spread by wind-borne spores". 

So, what's the best answer to the question?


 

 fungus          