1. with new technology, cameras can take pictures of underwater valleys ……………color.

2……………………..the fifth largest among the nine planets that make up our solar system.

3. In mathematics, a variable is a symbol……………… some element of a set.

4……………….actress’s life is in many ways unlike that of other women.

5. About 20 miles from Boston, ………………..a little town named Concord that has a rich history.

6. An advisor to both Franklin Delano Roosevelt and Harry Truman, …………..of Bethune-Cookman College.

7. Warmth, moisture, and oxygen are three necessary requirements ………………..most seedlings.

8. In the west, the birth of a girl is welcomed with an enthusiam……………………to that of a boy.

9. A well-known large natural lake is Lake Tahoe, …………………straddles the California-Nevada border.

10. Before …………………, they used horse-drawn wooden carts.

11.Tuna,…………………, may weigh up to 1,000 pounds.

12. Physical fitness exercises can cause injuries …………………… the participants who are not careful.

13.Total weight of all the ants in the world is much greater than …………………

14……………………for overall health.

15. Elephants scratch themselves with sticks………………..

16. In order to survive, trees rely to the amount of annual rainfall they receive, as well as the seasonal distribution of the rain.

17. The purchased of Louisiana was one of the biggest events in the history of the United States.

18. A future system of solid waste managements should begin with reduction in the amount of waste.

19. The tongue is the principle organ of taste, and is crucial for chewing, swallowed, and speaking.

20. The members of both the House of Representatives and the Senate are election by the citizens of the United States

21. The human ear cannot hear a sound that vibrates less than 16 times the second.

22. Some tree frogs can alter their colors in order to blend to their environment.

23. If one is invited out to a dinner, it is perfectly proper to go either with or without no a gift.

24. Some birds, such as quails, can move instant from a resting position to full flight.

25. In 1961,  America’s first manned spacecraft launched.

26. Geochemistry includes the study of the movement of elements from one place to another as a result of processes chemical.

27. Fireflies product light through a complex chemical reaction that takes place within their abdominal cells.

28. Wind is the motion that occurs when lighter air rises and cools heavier air replaces it.

29. Under the crust of the Earth are bubbling hot liquids that sometime rise to the surface

30. Oceans of the world exerts strong influences on the weather over the Earth’s surface.

31. The Columbine flower can survive in almost any type of gardens condition in the United States.

32. Kiwi birds search the ground with the bills for insects, worms, and snails to eat.

34. The growth rate of the Pacific Rim countries is five times fast as comparable areas during the Industrial Revolution.

35. Drug abuse have become one of America’s most serious social problems.

36. The Commitments of Traders Report is released by the Commodity Futures Trading Commission on eleventh day of each month.

37. Heartburn can best be understood as a symptom causing by acid reflux due to a weak lower esophageal sphincter.

38. In 1903, when the Wright brothers announced they had invented a flying machine, his news was generally ignored.

39. Lasers are indispensable tools for delicate eyes surgery.

40. Alexander Calder, who was originally interested in mechanical engineering, later became a sculpture.