D.
Surrounding volcanoes created fertile soil in the valley.
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Answer:</em></u></h3><h3><u><em>
Hooverville shanties were constructed of cardboard, tar paper, glass, lumber, tin and whatever other materials people could salvage. Unemployed masons used cast-off stone and bricks and in some cases built structures that stood 20 feet high.</em></u></h3><h3><u><em>
Explanation: a, sad, b, dirty</em></u></h3>
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Answer:
Ghaznavi and his fellow acquaintances were able to tap into the riches and the resources of Hindus. Because this all came to them in the form of booties of war, i.e. the spoils of war. Other things included the Hindus becoming slaves.