Answer: A
When the Europeans came to America, they were in search of land. But Native Americans occupied much of the land. So, Europeans went to war with them and killed many.
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The occupation that it referring to is : skilled and unskilled miners
This treaty was enacted in 1880 , back then the job as a miners is pretty much the equivalent of today's engineer in the term of hotness and availability.
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59 longitude on the map for the 49 degree line
The answer is c.which is it is rich in iron and magnesium
President Lyndon B Johnson