Most pollution ends up
A in outer space
B in cities
C in surface water

B- it’s often in cities where there’s cars and tons of people and active things happening in it

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.”

Is there a picture of the diagram?