About how long ago in history did the first cities emerge?

Which category of Asian Americans has an average income above the national average?

The category of the U.S. population in which women do most of the housework is ________

Which of the following are typically traits of marriage?

In 2016, about what percentage of the world’s people lived in countries that can be considered politically “free”?

A social-exchange analysis of family life is likely to consider ________

The category of the U.S. population in which women do most of the housework is ________

In 2016, about what percentage of the world’s people lived in countries that can be considered politically “free”?

In what year was half the U.S. population living in urban places for the first time?

Which of the following are typically traits of marriage?