As americans moved west, they built the railroad and then many new towns and cities. also, as americans moved west, the buffalo population declined. why? a) trains killed many of the buffalo. b) the buffalo moved further west to survive. c) there was less grass for the buffalo to eat. d) climate change caused the buffalo to become extinct.
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As americans moved west, they built the railroad and then many new towns and cities. also, as americ...
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