Define guerrilla warfare. Who relied on guerrilla warfare

Which of the following is an example of one of the successes of the marshall plan? a. a few eastern european countries decided to turn to democracy. b. western european economies were stronger than they had been before wwii. c. borders between western and eastern european countries shifted. d. eastern european countries eventually took part in the plan. ( answer in the format above so i can understand)

To keep other european powers from threatening its empire in america, spain sent soldiers, settlers, and?

Two types of resources are natural and human. true or false