What led european powers to divide and control the lands and peoples of africa?

When it came to the colonization of Africa, various factors took place including guns, germs and steel that played a role in the asserted dominance of the European powers. The Europeans, with the invention of steel and use of guns, were able to overpower the simple knives and tools of the Africans. Europeans began to compete over the conquering of land, because it showed their power and which country had more nationalism. 

Air pollution: “combustion results in gases such as nitrogen oxides, nitrogen dioxide and particulates. the main causes of air pollution include transport, domestic combustion and industrial processes. pollutants from these sources can cause problems in the immediate vicinity and a distance away.”

Answer the zagros mountains, stretch across western iran and are located next to the khuzestan plain; answer( zagros mountains