Human-Enviornmental Interaction
-South Africa richest country in minerals
-Oil: Nigeria, Angola, Equatorial Guinea, Gabon
-Diamonds: Botswana, DR of Congo, Republic of South Africa, Namibia
-Uranium: Namibia, Niger, Malawi, Republic of South Africa
-Strategic minerals: Republic of South Africa, DR of Congo, Rwanda
-Copper: Zambia, DR of Congo, Republic of South Africa
I'm pretty sure that it is oil because that is what most of the countries over there use it, making it a trend.
Answer:
You can live in igloos because it gives protection from the cold and some people live in them