smartunicorn smartunicorn

02-03-2017
Geography

contestada

Where is air pollution the worst?

cities
coastal regions
mountains
rural areas

Respuesta :

02-03-2017

The answer is cities. :)

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pheonixqueen97 pheonixqueen97

02-03-2017

the pollution is the worst in cities because of the factories and all the cars taht r being used.

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