asked 18.2k views
4 votes
Western Europe's air pollution has been reduced through _____.

monitoring water use
increased fuel efficiency
improved engine efficiency
catalytic converters
agricultural intensification

(multiple choice)

asked
User Newguy
by
8.5k points

1 Answer

4 votes

Western Europe's air pollution has been reduced through improved engine efficiency.

answered
User Jishi
by
8.3k points
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