São paulo, rio de janeiro, and brasilia are major cities in

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.”

There’s no picture or character?

Dis the answer you perception is how you see the world 

Answerhighlands and forests;