What is meant by a puppet government

During the cold war, which of the following groups of countries would have all been"behind the iron curtain"

What was the historic border between the united states and mexico?

Which of the following accurately describes the workforces of the united states and canada? a. most of the workforce in the united states and canada is employed in the service industry. b. most of the workforce in the united states and canada is employed in the educational field. c. most of the workforce in the united states and canada is employed in manufacturing and mining. d. most of the workforce in the united states and canada is employed in agriculture.