The majority of the population in South America resides on the coastlines of the continent because most of the cities are near the coast.
Living near the coastline is very beneficial. It gives you productive fisheries and many opportunities, and it protects you from storms and there are many other benefits of the same.
Most South American cities are located near the coastlines. This is because of the physical geography of the continent. That's why the majority of the population in South America are residing on the coastline of the continent. They also leave near the coastline because of easy availability of transportation.
Thus, this is the reason why a majority of the population in South America is residing on the coastlines of the continent.
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