Which was a trading partner of the Indian Ocean Complex? a) East Africa
b) West Africa
c) South America

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.”

It is c. naturally in the environment

Don’t use up to much of them it leads to pollution

The answer to the question is moraine