Uneven distribution of wealth, increased population leads to crowded urban areas which could be unsanitary, immigration can cause cultural conflicts
<span>the act of leaving one's own country to settle permanently in another; moving abroad.</span>
I would say mountains. The mountains are high so on one side of the mountain there could be a river and the water evaporates up the side and creates rainfall while on the other side lacks rain due to a rain shadow
B.All continental coastlines have high availability of wind power