You are presented with the question "What does zinc have a positive impact on?" and the following answer choices: 
- Most plants
 - genetic material
 - water conservation
 - lowered energy cost
 - injury to the skin
 - consumers
 - circulatory systems
 - nutrients

Now knowing that zinc has a positive impact on the healing of wounds and wounds A wound is an injury to the skin and underlying soft tissues, choose the best answer.


 

     injury to the skin    