Respuesta :
Factors that have contributed to heterogamy include all of the above.
What is heterogamy?
Heterogamy is the marriage between people of different characteristics. The characteristics are:
- different sociological backgrounds
- educational levels
- different races.
Geographical mobility has positively contributed to heterogamy. When people from different races meet as a result of travel, they tend to be more interracial marriages.
To learn more about heterogamy, please check: https://brainly.com/question/25626127