Answer:
<u>The Gold Rush had an effect on California's landscape.</u>
Explanation:
<em><u>Rivers were dammed or became clogged with sediment, forests were logged to provide needed timber, and the land was torn up all in pursuit of gold.</u></em>
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<span>Estonia, Latvia, Lithuania, and Poland all lack tourism</span>
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The map that is given gives you a hint to what the answer is. On the legend it states the hint, "people per km²". This tells us that the map shows the population density in South America. A population density map shows which areas have the most people to least people.
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Hope This Helped! Good Luck!