Poverty causes many things, among them a higher risk to get ill and to die earlier than the average life expectancy. It also causes low education, since the families can't afford to send their kids to university. Even in countries where you don't have to pay for it. You still have to eat, find some cloths and have a place to bunk down. In short, you eat up resources that aren't available in the first place.
It's got nothing to do with intelligence, apart from the fact that measuring intelligence is more and more debated among scientists and doctors.
It's got nothing to do with intelligence, apart from the fact that measuring intelligence is more and more debated among scientists and doctors.