1. _____ 200 bones forming the framework, or skeleton, of the human body.

2. Not until the 1850’s _____ a few public-spirited citizens and state legislatures seek to rescue historic buildings in the United States from destruction or alteration.

3. The planet Neptune is about 30 times _____ from the Sun as Earth is.

4. Adhesions are _____ formed within the body in response to inflammation or injury.

5. In 1978 the united States National Air and Space Administration selected Sally Ride _________.the first woman astronaut.

6. _________, dolphins have no sense of smell.

7. ________ to inanimate objects, such as machines, is a form of animism.

8. Volcanoes are divided into three main groups, based on their shape and the type of material they _____ .

9. Working like a telescope, _____ the size of objects at great distances

10. The Hawaiian alphabet, introduced by missionaries in the 1820’s, _______ and only seven consonants.

11. Flag Day is a legal holiday only in the state of Pennsylvania, _____ Betsy Ross sewed the first American flag.

12. The discovery of the halftone process in photography in 1881 made it _____ photographs in books and newspapers.

13. Beef cattle _____ of all livestock for economic growth in certain geographic regions.

14. Although thunder and lightning are produced at the same time, light waves travel faster ____, so we see the lightning before we hear the under.

15. Dairy farming is _____ leading agricultural activity in the Unites States.