1. The dominant philosophy of the Age of Enlightenment _____ in the universe in terms of forces that could be detected by the human senses.

2. The redhead duck builds a deep nest of reeds _____ up to a dozen egg are laid.

3. Sherwood Anderson’s novel windy McPlerson’s Son, _____, first appeared in 1916.

4. _____ were first used in electrical power production, it was necessary to add super-heaters, because turbines work best with high-pressure steam.

5. Used only for wall surfaces that are exposed to view or require a decorative effect, _____.

6. Their keen senses of hearing and smell have made some types of dogs _____ in hunting and tracking and as security guards

7. It is unlikely that a nation would choose war if its goals _____ peacefully.

8. In 1914 a bronze tablet _____ Harriet Tubman was placed at the entrance of the Cayuga Country Courthouse in Aubum, New York.

9. The Hawthrone studies, _____ the monotonous working conditions of factory personnel, were a major contribution to industrial psychology.

10. As Mercury moves in its solar orbit, _____ its axis, an imaginary line that runs through its center

11. _____ Eijah McCoy’s invention of the lubricating cup in the early 1870’s, machinery had to be stopped in order to be lubricated.

12. Not only can walking fish live out of water, _____ they can also travel short distances over land.

13. In addition to pleasure, _____ excitement, challenge, and relaxation.

14. The light from a laser differs _____ produced by other sources, such as electric bulbs, fluorescent lamps, and the sun.

15. _____ limit to the extent which human beings may benefit from their own inventive genius.