Q: Fact 1: Agasoline lawn mower converts gasoline into motion. Fact 2: Gasoline lawn mowers can be as bad as cars when it comes to emissions. Given the two facts above, gasoline mowers convert gasoline into something as bad as what when it comes to emissions?

pick from the following.
(1). Roads
(2). oil
(3). buses
(4). shoes
(5). homes
(6). trees
(7). cars
(8). bears
The answer is:
(7).