Ok, ethnic, means a sub group who are different from the main population. So if a country was 90% of one culture and 10% of another culture then the 10% would be able to offer "ethnic" elements to the main population. (so ethnic food, ethnic clothing etc) Now racial is a whole different thing. Some people believe that there are different races, the Han, the Inuit etc. If you have these beliefs, then you could describe people of being of a different race. So an ethnic group could also be described as being of a different racial group. But a different racial group does not have to be part of a different ethnic group. My own opinion is that we are part of the Human Race, but what do I know? Good luck with this :-)

Ethnic refers to a group of people who have the same customs, religion and origin (nationality, language and ancestry), whereas race refers to a person's physical characteristics such as hair, skin or eye color and bone structure.

Ethnic culture is mostly of native culture or as to what a distinct place or location's society practise while racial is in a higher scale,