<span><span> A.</span><span>Since ancient times, people have used waterways for transportation.
</span></span><span> B. When natural waterways are too difficult to navigate, people sometimes dig canals to provide a better means of transportation.
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<span>D. Canals are man-made waterways that change the natural landscape to meet human needs.</span>
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I would say It's C because during 2009 we had the 2009 crash but please tell me if I'm wrong
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invention of the cotton gin
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For a war if I'm right. I think that was the beginning of the American Civil War. I could be wrong though.
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