Answer : The correct answer is : The University of Kansas Professor, Donald Worster is a leader in the field of environmental history. In his book Dust Bowl: The Southern Plains in the 1930s he says that the Dust Bowl was formed in just 50 years, the Americans made their way through a very ruthless and devastating continent, summarizes that the Dust Bowl was the inevitable result of a culture that deliberately and consciously set out the task of dominating and exploiting the earth. The United States found volatile land destroying the ecological balance. But Professor Douglas Hurt head of the history department at Purdue, in his book The Dust Bowl: An Agricultural and Social History says that dust storms were not exclusive to the 1930s, that many factors contributed to their formation, such as : soils subject to wind, erosions, droughts, the nature of the soil and the technological abuse of the land which could have been stopped.
D. To protect soldiers from machine gun fire
People dug trenches to keep "causalties down"
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The Ottoman Empire dominated trade routes between Europe/the Mediterranean and Asia. It had a virtual monopoly over these trade routes from the early 1400s through the early 1500s. However, by 1500 European ships had become ocean-worthy and sailors (beginning with da Gama) found the sea route to Asia around the southern cape of Africa. Though the land route to Asia through Ottoman territory was shorter and more direct, the ocean route around Africa could be faster and was not vulnerable to blockade by the Turks. The Ottoman Empire gradually lost some of its wealth due to the shifting trade, but it remained the singlest greatest power in Eastern Europe and the Eastern Mediterranean until the late 1600s.
<span>So, the most important impact of the Ottoman Empire on global trade was that its power in the 1400s and 1500s forced European nations to invest in ocean-going navigation and exploration in order to sail to Asia rather than go through Ottoman land routes.</span>
He did so because the government wanted to emphasize the use of Uzbek.