<span>The economy of these early civilizations was based on agriculture. The correct answer is B. Industry and production are incorrect answers because at the time, no technology existed so these options were impossible to live on. While warfare is a plausible option, agriculture is better because it provided them with crops and plants that they could cultivate and live on.</span>
The cold war ended. Nixon was not impeached but resigned before he could get impeached. By process of elimination it is c or d. I am not 100% sure. Hope this helps.
