Why does the ocean water become salty at the north pole?

colonialism had a huge impact on the lives of Africans economic policies were adopted by Europeans.Africa's tradition lifestyle and culture were destroyed ,land was taken away from people ,by the colonial power it became a problem after world war ll when European countries were financially devastated, cash crops were introduced to meet industrial needs of European countries cocoa ,coffee ,tea these are some examples ,till today African on it own isn't doing very well ,it a both a developed and developing country ,like in terms of health care we don't really have everything we need in a country

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