Answer: European diseases were killing millions of Native Americans
Explanation:
The factors that affected Native Americans that is directly implied but not stated in this excerpt is that "European diseases were killing millions of Native Americans".
It should be noted that the mail reason for the European diseases killing millions of Native Americans was because of their low immunity.
<span>Jim Crow laws,
in U.S. history, statutes enacted by Southern states and
municipalities, beginning in the 1880s, that legalized segregation
between blacks and whites. The name is believed to be derived from a
character in a popular minstrel song.</span>
"The Sherman Antitrust Act<span> was the first measure enacted by the U.S. Congress to prohibit trusts (or monopolies of any type). ... The </span>Sherman Antitrust Act<span>, in contrast, was based on the constitutional power of Congress to regulate interstate commerce."
A. To prevent creation of monopolies would be correct.</span>
B.) In the Brazilian Highlands