Which of the following statements best describes migration in the 20th century?
a.
large numbers of people moved to foreign colonies during the 20th century.
b.
migration during the 20th century was purely for economic opportunity.
c.
migration during the 20th century was influenced by several factors, including war and politics, urbanization, and economic opportunities.
d.
migration in the 20th century was influenced by european imperialism.

Which of the following statements best explains why there tends to be a greater number of large cities in southern africa than the east africa

Which of the following is an example of a policy that may be implemented by a business that has trouble with employees using the internet for their own personal needs? a. all employees will have to take a safety training class. b. employees caught using the internet for personal needs will have to take a professional development class. c. personal interviews will be conducted to find out who is using the internet for personal needs. d. employees will be monitored, but nothing will happen if their employer catches them using the internet for personal needs.

Who developed the theory of plate tectonics?