Plz help! Due tonight! Why is the American mass transit system lacking in comparison to those of European countries?

Under the new imperialism europe did not need large numbers of people to control territories because of

What event started the space race and made americans feel their security was threatened a.) alan shepard's suborbital flight. b.) the launch of sputnik c.) the launch of explorer d.) the cuban missle crisis

15 pt (more than one answer)what are some of the ways businesses increased productivity? -obtained new machinery -obtained new resources -obtained new technologies -found ways to make their workers more efficient