Colorism-skin tone discrimination in America is basically discrimination based on someones skin color. It's a form of prejudice in which people are treated differently based on the social meanings and connotations attached to their skin color. However, It's not really a synonyms for racism, even though it seems like it.
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I’m not sure; just need points
Answer: Until this century, relative dating was the only technique for identifying the age of a truly ancient object. By examining the object's relation to layers of deposits in the area, and by comparing the object to others found at the site, archaeologists can estimate when the object arrived at the site. Hope this helps!