Answer:
The movement of the field workers that travel from the "southwestern US to eastern Washington" to harvest apples is an example of 'Periodic Movement'.
Step-by-step explanation:
- Periodic movement can be defined as the movement that is done in a specific period of the year.
- This movement happens over and over again during the same period of the year. It is done to fulfill a specific purpose, majorly in the search of work or to fetch economic gains.