<span>Because it became a hot spot for confrontation between Communist USSR and Capitalistic US.</span>
I'm 100% sure that I've got all the answers correctly, as I've checked them all using a book. The answers are in bold. I hope it helps. Here are the answers:
1. J. Mesopatamia is an a<span>ncient region of southwest Asia between the Tigris and Eurphrates Rivers
2. They invented the wheel. I'm pretty sure that the wheel was invented by </span>I. The Sumerians.<span>
3. Sumerian writing system is called </span><span>D. Cuneiform.
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4. </span>G. Amorites is a<span> semetic group that moved into the fertile crescent after 2000 B.C.
5. Founders of algebra and astronomy are </span><span>C. Babylonians.
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6. Sumerians were the first people to use this shape for religious structures. It's definitely a </span><span>A. Pyramid.
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7. </span>F. Ziggurat is <span>a step pyramid.
8. </span><span>H. Clay is the m</span><span>ost common building element of ziggurats.
9. Much sumerian are was created as </span>B. Propaganda.<span>
10. Renowned sumerian ruler is </span>E. Gudea of Lagash.
<span>Many factors can affect how long it takes for an inch of topsoil to form, but it normally takes at least 100 years and often over 500 years. The factors that affect soil formation are parent material, topography, climate, organisms and time.</span>
