Millions of years
A week
Hundreds of years
Thousands of years
Hay fever gets its name because most people are allergic to it?
Pollen
Dust
Spores and Dust
Spores
Spores, Dust, and Pollen
Spores and Pollen
Terrorism
Robbery
Faked or forged documents and artwork
Fake prescription drugs
Homicide
All of the above
Light microscope
All the above
Scanning Electron Microscope (SEM)
Magnifying glass
Light and SEM microsope