1. Except for certain microorganisms, _____ need oxygen to survive.

2. Based on atmospheric physics, _____ is mainly applied in weather forecasting and control.

3. Worldwide, _____ about fifty thousand newspapers with a total circulation of nearly four hundred million.

4. George Washington Carver _____ international fame for revolutionizing agricultural research in the southern United States during the early twentieth century.

5. In ancient times _____ used for mixing and serving wine and water or for containing water, wine, or oil.

6. In 1978 the United States National Air and Space Administration selected Sally Ride _____ the first woman astronaut.

7. Best known among ancient American peoples _____ who left behind pueblos and pictographs in many locations across the southwestern United States.

8. In strip mining, surface material is cleared away to reach _____ often of coal.

9. The "confederation school" poets of nineteenth-century Canada were primarily nature poets, _____ a wealth of eulogies to Canadian rural life.

10. Nominalism is _____ claims that general terms represent nothing objective or real.

11. Although humans can make a vast variety of sounds, _____ languages use fewer than 40.

12. The wood of the teak tree resists water, _____, and takes a high polish.

13. In Canada, as in the United States, a limited acreage east of the Rocky Mountains proved _____ for irrigation.

14. The distinguishing feature of a fluid, in contrast to a solid, is the ease _____.

15. The Actor's Studio, a profesional actors'workshop in New York City, provides _____ where actors can work together without the pressure of comercial production.