Answer:
The farmers in Sumer created levees to hold back the floods from their fields and cut canals to channel river water to the fields. The use of levees and canals is called irrigation, another Sumerian invention
Explanation:
The United States has a diversified or a mixed economy.
<h3>What are the conditions of US economy?</h3>
The US economy relies on and deal heavily in exports of goods and services, of which airplanes, soy, and oils constitute a large part. There are traits of a capitalism as well as socialism in the US economy.
Thus, option C holds true of the US economy.
Learn more about US economy here:
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My best guess at the correct answer is D. This is because studying and experience is always better than having nothing.
2nd one because those were the areas with the best water to grow the planbts.
