A unitary system of government, or unitary state, is a sovereign state governed as a single entity. The central government is supreme, and the administrative divisions exercise only powers that the central government has delegated to them.
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Early civilizations changed their natural environments by the domestication of animals hinting and irrigation Hopefully this helps!
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China's trade increased.
Explanation:
Due to Zhang Qian's exploration of the West, the trade routes of China were greatly expanded.
The persian war a horrible war but in the end the greeks won. It was between us(Achaemenid Empire) and Greek city-states that started in 499 BC and lasted until 449 BC. Our king Darius wanted more than anything to conuer Greece. We wanted more land. The Greeks only lost 192 men and we lost 6,400 men. The war was a blood shed but in the end the Greeks won.
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Southerners profited from slavery because slaves worked hard free labor in fields. Northerners lived in cities, and towns with bustling factories and the Industrial Revolution was booming and slaves weren't important to them at all. Southerners didn't have to pay for workers therefore slavery was important to their income and profit.
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