A typical gasoline–powered lawn mower emits about as much air–polluting material per hour of use as does an automobil...
on September 25, 2019
D?
Why is D incorrect ?
1 Reply
Irinaon September 25, 2019
@elsaleh,
(D) is incorrect because it weakens the argument. The argument concludes that people can help reduce air pollution by switching to electric mowers, whereas (D) suggests that people could instead buy a redesigned gasoline mower to reduce pollution.