$40 QUESTION -- Category: Going Places

Why is natural gas used to run some buses and cars today?

  1. It's a really cheap fuel.

  2. It's easy to get in most of the country, thanks to a huge network of pipelines.

  3. Both 1 and 2, and it burns up to 90 percent cleaner than gasoline- or diesel-powered engines.

Congratulations! You got that one correct. Give yourself $40.00!

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