How did the berlin conference affect 19th-century european imperialism in
africa

Involvement in Africa before 1884. Before the Berlin Conference, European colonization of Africa was present but limited, with only 10% of Africa under European control in 1870. In the 1870s the “Scramble for Africa” began in earnest, with 90% of Africa under European control by World War I.

Explanation:

i think option 3. would be ur best bet and u need to write it urself

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since most of current immigration into the u.s., both legal and illegal, is coming from latin america. it would be very difficult to imagine or rationalize a country my fellow citizens are trying desperately to flee into, would pose a threat to my prosperity or freedom. since the u.s. has a long history of intervention, but no record of permanent occupation, i would not feel oppression is the main objective.  

the largest free trade nation, along with the largest gdp in the world wanting to expand it's economic policy on us, and including us, could only be positive. the u.s. government has no interest in, or way of simply forcing american culture on us. and has no track record of it. other nations that adopted american social culture, or "americanization" did so voluntarily, mainly through the choice of allowing american businesses and u.s. citizens to come into their nations, as free operatives.