One of the most important was climate changes. As climate changed, nomads had to find new places to migrate to which led to people going to areas that were uninhabited before. Another was the development of agriculture which more or less ended the nomadic way of life when people started settling.
15+25+35+45=120 120 divide 4 = 30
Although the conflict divided tribes and villages, the war also saw the first extensive multi-tribal resistance to European colonization in North America and was the first war between Europeans and American Indians that did not end in complete defeat for the American Indians.
Answer:
The planes carried bombs that exploded when the pilots crashed into targets.
They were part of Japanese Special Attacks Units from the military aviators. The attacks consisted of missions against Allied naval vessels to destroy more effectively the warships than with conventional air attacks. In order to achieve this, the pilots converted their planes into a flying bomb and crashed themselves into the ships.