What does the term migration refer to?

The term migration specifically refers to the relocation of people from one place to another, often across borders or between countries. This movement can occur for various reasons, including economic opportunities, political asylum, family reunification, or environmental factors. In the context of Oklahoma history, migration has played a significant role due to events such as the Dust Bowl, which prompted many individuals and families to relocate in search of better living conditions.

The other options, while they refer to movements or changes, do not capture the essence of human migration. The movement of animals pertains to wildlife and ecological changes, seasonal movements of crops relate to agricultural practices, and changes in geographical features involve geological processes, none of which directly define the concept of migration as it applies to people.