Which of the following best describes the location of the first river valley civilizations? a. civilizations developed in locations ideal for trade with natural defenses to prevent attack. b. civilizations developed in remote areas so that they did not have to spend tax money on defense walls. c. civilizations developed in areas well suited for agriculture but relied on trade for everything else. d. civilizations developed in areas ideal for trade but low in natural resources and defense

C. Civilizations developed in areas well suited for agriculture but relied on trade for everything else.

Explanation:

Humanity´s first civilizations were established on the banks of rivers around the time of the Neolithic Revolution (12000 BCE).

The Ancient Egyptians were located on the Nile, the Mesopotamians in the Fertile Crescent on the Tigris/Euphrates rivers, the Ancient Chinese on the Yellow River, and the Ancient India on the Indus.

Rivers provided a steady water source for agriculture, and are a perfect waterway for trade.

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