True or False A (true), B (false)

1. trade, migration, and war are all factors that encourage cultural change.
A or B

2. One factor that influenced the growth of many early cities was proximity to navigable water sources.
A or B

3. Quaternary economic activities involve providing services, such as those performed by teachers, government, and scientists.
A or B

4. More developed countries have widespread manufacturing and service industries that provide a high standard of living.
A or B