Whuch practice does not protect the environment?
a) efforts to regulate carbon dioxide emissions
b) increased use of wind and solar power sources
c) frequent usage of a suv
d) decreased use of fossil fuels

The answer to that one is C, Frequent us of a SUV

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.”