Although your question is incomplete, I would guess B. African Americans.
Answer:
As demographic changes began occurring, people became more aware of the importance of this new area as it was growing rapidly and natural resources were abundant.
Due to the new metal and iron, this area was now armed with weapons.
These groups eventually moved to southeastern Europe, the Aegean, the Mediterranean, and southwest Asia. These migrations took over the weaker populations such as the Egyptians and Minoans.
Natural changes like droughts and dust storms forced the Zhou people to settle on the edges and eventually they lost their dynasty.
A is the correct I hoped that helped
Yes they are on the upper and lower half's of the world
Answer:
Once early civilizations developed, they continued to change over time. Factors such as the environment, conflicts, and the movement of people and ideas affected civilizations and led to change.