After spending two hours trying to solve an engineering problem, Amira finally gave up. As she was trying to fall asleep that night, a solution to the problem popped into her head. Amira's experience best illustrates

answer; collective security;

swahili is an extremely rich and complex civilization, a set of ethnic groups articulated by a language and a series of cultural elements that fuse the african traditions, islam and indian culture. this growth was largely a result of the indian ocean trading network that brought in not just man-made riches, but also religious ideas, specifically islam, which had a significant impact on the local culture. furthermore, the development of the swahili language gave a common cultural unity to the people.

answer; basic psychology;

answer; observing;