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Answer:
D
Explanation:
they figured by not riding the bus it would cause the bus company to be forced to change their policy towards Blacks by hurting them financially
Answer:
fertile soil flooding
Explanation:
Most ancient civilizations developed alongside rivers. The main reason why is that these rivers periodically flooded the sorrounding areas, making the soil more fertile. This physical phenomenon allowed the cultivation of more and better crops, which increased the wealth and complexity of the civilization.
Examples are: Ancient Egypt and the Nile, Ancient Mesopotamia and the Tigris and the Euphrates, and Ancient China and the Yellow River.
There appears to have been no mass extinction associated with the carboniferous period. The period exist about 299 Million ago in the late paleozoic era. The only thing that defined this period is an existence of rich deposit of coal , and there was no mass extinction happen in this period
