Viruses are usually considered to be nonliving, and all matter, living and nonliving, is made up of atoms. Given these facts, viruses are usually considered to be what among 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    