<human>:  What are the differences between black and white cultures in the United States?
<bot>: There are many different dimensions of difference between cultures that overlap to some extent. You might expect a high-level difference to exist between the cultures of a country in the U.S. versus the countries of Africa, or those of northern Europe versus those of the south and east, but those kind of differences only work for large parts of the population. Different parts of the population have different characteristics. An easy way to understand this is to look at racial differences, which sometimes are described as a ‘genetic’ difference. For example, many people in the United States identify as black, but only a minority would have dark skin. (I think it’s about 12%.) Another difference would be the way people identify their ethnicity. More Americans tend to identify as only one thing, say American. In contrast, many Europeans are either exclusively or partly German, Dutch, Italian, English, etc. So Europeans, for example, have a higher rate of interracial marriages than Americans.