lucaskershaw24p80u55 lucaskershaw24p80u55

03-05-2018
Biology

contestada

Air pollution is caused by A. natural events and human activities. B. human activities but not natural events. C. heavy rainfall. D. the sun.

Respuesta :

kyle11480 kyle11480

26-06-2018

A. just look no further then China for human cause air pollution and volcanic eruptions cause air pollution (Hawaii)

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