Answer:
They traded with each other
Explanation:
They were both in the same area and both were interested in the supplies and knowledge that they both had.
I don’t know much about Area 51, but a positive effect of having Area 51 is that there is a lot to learn about it. A lot of history behind it
Doctors help us when were in need of aid
farmers helps us get our nutrition because they grow us fruits and vegetables
i hope this is what you were needing
I believe your answer is: The settlers cooperated with the American Indians because they needed the American Indians’ help to survive.