Question

Why should you never smell a chemical directly?

A. Many chemicals have no smell.
O B. All chemicals smell the same.
C. You cannot learn anything by smelling.
D. Some chemicals can hurt your windpipe.

Answer 1

D

Step-by-step explanation:

by directly smelling something you are ingesting tiny particles of it, which is why directly smelling a chemical is a bad idea.

Answer 2

D

Step-by-step explanation:

Some chemicals can hurt your windpipe