1. In pools, goldfish are not just ornamental: since they feed on mosquito larva they are also benefit .

2. Metalworkers use the term “machine tool” to refer to a piece of an equipment used for shaping metal.

3. Cool temperatures, shade, moist , and the presence of dead organic material provide the ideal living conditions for mushrooms.

4. The eight stripes of red, white, and blue on state flag of Hawaii represent Hawaii’s eight major islands.

5. Entomologists, scientists who study insects, are often concerned with the fungus, poisonous , or virus carried by a particular insect.

6. After 1845, pestilence spread in Boston, but before then , Boston was a city in which the life span of its citizens was long and disease was rarely .

7. Brown rice has great nutritional value than white rice because the nutrient-rice outer layers of the rice kernel are not removed from brown rice.

8. The United States government program Head Start prepares children for school encourages the involvement of local communities in the children’s Development .

9. The waters of Hanauma Bay in Oahu, Hawaii, are known for the color , diversity and abundant of their tropical fish.

10. Industry’s need for more and minerals is a constant challenge to the mining industry to make new discoveries .

11. A landmark famous , the Brooklyn Bridge in New Yolk was one of the first woven wire cable suspension bridges ever constructed .

12. hanges within the chemist structure of single genes may be induced by exposure to radiation and extreme temperatures.

13. Most bats roost in crevices, caves, or building by day and are active at night or twilight.

14. Wildlife photographers are involved of a new government project to docum the 50 most endangered species in the United States.

15. The Architectural History Foundation was established in 1977 to support the publication of important book on architecture.

16. Ludmilla Turkevich, known as a translator and scholar in the field of Russian literature, she became a member of the faculty of Princeton University during the Second World War.

17. For more eighty years, scientists have argued over whether life exists on the planet Mars.

18. The Bollingen Prize in poetry established of the Bollingen Foundation, is a $1,000 award for the year’s highest achievement in poetry in the United States.

19. Beyond their importance as a source of food for both people and animals, corn is also used to produce alcohol- based fuels.

20. Some of the first aerial photographs were taken from a balloon while the Civil War in the United States.

21. Being chemical compounds, minerals have characteristic shapes and colors, whereas do rocks not .

22. The survival of a forest depends not only on the amount of annual rainfall it receives, and also on the seasonal distribution of the rain.

23. Because the diamond is the hardest naturally substance, it is used in industry for to cut, grinding, and boring other hard materials

24. In the late nineteenth century, journalist and publisher William Randolph Hearst established a vast publishing empire that included Eighteen newspapers in twelve city .

25. According to modern astronomers, the space between the planets and stars is not empty; rather he is filled with something called dark matter.