Question

What is a smell?

A)electrical signals from the substance you are smelling
B)light from the substance you are smelling
C)molecules of the substance you are smelling
D)smells are not matter, but are energy waves from the substance you are smelling

Answer 1

Smell is
C) molecules of the substance you are smelling

Answer 2

C) Molecules of the substance you are smelling. They enter the nose and bind to receptors, sending signals to the brain which is interpreted as a smell.