Answer: an economic phenomenon where two parties each hold an item the other wants, so they exchange these items directly without any monetary medium!!
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A lodeing dock where the lodes the raw materials either for trade or for resorce payment
The correct answer among all the other choices is A. the revival of democratic revolutions, and nationalism. This is a factor that caused German and Italian unification. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
Answer:
Technology. Sumerians invented or improved a wide range of technology, including the wheel, cuneiform script, arithmetic, geometry, irrigation, saws and other tools, sandals, chariots, harpoons,
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