Nationalism and imperialism were major factors to the world war 1. that lead to some conflicts between nations. imperialism also contributed to start world war 1 because the European nations attacking and conquering different areas of Africa and Euro nations attacking other Euro nations for African Territory.
Answer:
I would say the second answer
Answer: the hunters adapted to the change in their environment by hunting smaller prey and they fished and gathered edible plants and fruits.
Explanation: hope this helps :D
I believe your answer is: The settlers cooperated with the American Indians because they needed the American Indians’ help to survive.
(This didn't last for very long, but it was good while it worked at first.)
Voila! I hope that helped :D