Answer:
The Silk Road extended approximately 6,437 kilometers (4,000 miles) across some of the world's most formidable landscapes, including the Gobi Desert and the Pamir Mountains.
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Irrigation is what brings water to fields and crops.
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Because chief justice Marshall declared that slaves were not people, but we're property and there for had no right to sue in any way shape or form. This called for the fugitive slave act, which out raged abolitionist.
D is the best answer for this one or both of them
Africa is usually unstable on who ruled areas, and rebels tend to cause war, there is also a fight for natural resources. this makes a stable gov. difficult.
