Fact 1: Vinegar can cause harm to the eyes.

Fact 2: Vinegar, battery acid, and wine are acids.

Given the two facts above, answer the question "What can acids do the eyes?" with the following options: 
- clean the eyes
 - harm them
 - help the eyes
 - heal the eyes
 - protect them
 - Relieve pain
 - kill them
 - Change colors


 

  harm them       