Can some one help me with this

European expansion into africa left native regimes intact but had a strong impact on local societies what does this mean

How did europeans and africans displace native americans in north america’s predominant peoples?

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.