1. Considered one of the most beautiful of the fine art , ballet is a combination of dance and mime performed to music.

2. The musical tone of an electric guitar is created not by the resonance of the body of the guitar but by electronically amplification.

3. The sensation of sound is produced how vibrations transmitted through the air strike the eardrum.

4. Lucid dreaming, the ability dreamers to become aware of and to control their dreams while dreaming , is the focus of some current psychological research.

5. The nectar of flowers are ingested by worker bees and converted to honey in special sacs in their digestive systems.

6. Rodents dwell in various habitat , some species being aquatic, some terrestrial .

7. Weighing among two to five kilograms in adults, the skin is the largest organ of the human body .

8. Pythons differ than most other snakes by having two well developed lungs rather than a much smaller left lung or no left lung at all.

9. Toward the end of his life, John Singer Sargent returned to the painting of landscapes and the use of watercolors, of which he excelled.

10. A sponge feeds itself by drawing water through tiny pores on its surface , filtering out food particles, and then expel the water through larger vents.

11. The decade of the 1920’s was significant in Georgia’s history because of the rapidity with what agriculture declined in the state.

12. Sawfish are shark-like fish have “saws” of cartilage set with two rows of teeth on their snouts.

13. Free nitrogen is chemically inert and combines with other elements only since very high temperatures or pressures.

14. Physiologically, the period of adolescence is marked by active growth, especially in the skeletal and muscular systems and in a certain vascular tissues.

15. Hoocer Dam in Nevada is a multipurpose structure that provides flood control, hydroelectric powerful , and drinking and irrigation water .

16. In many areas of the world, people need clothing for protection the weather.

17. Depending on many factors, including climate, mineral content of the soil, and the permanency of surface water, wetlands may be mossy, grassy, or covering with shrubs or trees.

18. Each stanza of a poem has a repeatable pattern of meter and rhyme and is normally division from the following stanza by a blank line.

19. Many narcotic plants and its products, such as nicotine, are effective in controlling insects.

20. Before the formation of labor unions, individual workers had almost not voice in determining their wages, hours, or working conditions

21. Canada is made up of ten provinces and two territories, with governmental powers being divided between the federal government or the provinces.

22. Yogurt contains a higher percentage of lactic acid than another fermented milks, and it is rich in B-complex vitamins.

23. Materials that of clay are among the most ancient manufactured articles and have played a vital role in human civilization.

24. The term “metabolism” refers to the chemical changes which by living things transform food into energy.

25. Common salt occurs naturally in pure, solidly form as the mineral halite and in widely distributed deposits of rock, or mineral, salts.