Dom How were the American Indians largely responsible for the success of European settlements? A. They provided the Europeans with shelter.

B. They shared their land with the Europeans.

C. They taught the Europeans how to grow certain crops

D. They led the Europeans to large deposits of gold and silver.

Can someone me with these 2 questions? and tell me why it is the correct answer?

Francine, a college freshman, has agreed to participate in a psychology research study. before she begins her participation, she reads a statement written by the researcher explaining the purpose of the research and the potential risks of participation. it also explains that francine is free to withdraw from the research at any time. in providing francine with this statement, the researcher has followed the ethical guidelines of for participants.

How and to what extent did the enlightenment thinkers challenge social and political aspect of the world in the 1700s?