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Standard measuring and writing systems helped unite people under the Qin dynasty because everyone had to use these systems.
Answer:
That would be C, the South was very familiar with the landscape and terrain and they would harass Northern Invaders immensley.
Explanation:
North Africa has vast oil and natural gas deposits, the Sahara holds the most strategic nuclear ore, and resources such as coltan, gold, and copper, among many others, are abundant on the continent. The region is full of promise and untapped riches - from oil and minerals...
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