Marco-elements are needed by the body in large amounts in order to maintain
good health
<em>Hello Kirenya, I recommend going to the link below. It is from Colgate so it should help you a lot. I hope this helps and if you need more help just ask. Have a nice day!</em>
<em>Link: https://www.colgate.com/en-us/oral-health/conditions/gum-disease/bleeding-gums-and-other-warning-signs-of-gingivitis-0513?gclid=CjwKCAjwza_mBRBTEiwASDWVvo_et869pPrZ0jvugs8GD6j_fJPu_siate7cRUMEDaA8LGRPKvyIIBoClj0QAvD_BwE&gclsrc=aw.ds&</em>
Mostly fish or aquatic animals can breath though there skin and or gills.
Hope it helped :)
Because you dont want the customers eating or getting ant harmful bacteria
