Section: Science

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According to the third paragraph, what statement best describes a pterosaur?

1. A land-roaming dinosaur that feeds mostly on bugs and vegetation.
2. A flying dinosaur.
3. A birdlike dinosaur incapable of flight.
4. None of the above.

The context clue of grouping pterosaurs with "hairy-feathered birds" that "filled the skies," and, of course, the "-saur" word portion combine to create the image of a flying dinosaur.