Answer:
A flat surface that produces an erect visual image of a real object where front and back are reversed
Heart disease and obesity.
If an example is what you need i'll try my best to help. Say for example, you're sitting in class and you're doing a group project and you want your best friend to do it with you but (s)he thought you had meant that you wanted to do it with someone else, because of poor body or facial language.
Does this help at all?...
