Fact 1: Viruses are usually considered to be nonliving.

Fact 2: All matter, living and nonliving, is made up of atoms.

Given the two facts above, answer the question "Viruses are usually considered to be what?" with the following options: 
- dangerous
 - made up of bacteria
 - made up of medicine
 - harmful substances
 - made up of atoms
 - made up of colors
 - homogenous
 - major threat to health


 

     made up of atoms    