1. The Mississippi, the longest river in the United States, begins as small clear stream in northwestern Minnesota.

2. The nitrogen makes up over 78 percent of the Earth’s atmosphere, the gaseous mass surrounding the planet.

3. Electric motors range in size from the tiny mechanisms that operate sewing machine to the great engines in heavy locomotives .

4. One inventor that Thomas Edison can take credit for is the light bulb .

5. Jessamyn West’s first and most famous novel, The friendly Persuasion describes the life of a Quaker farmed family in the mid-1800’s.

6. The strongly patriotic character of Charles Sangster’s poetry is credited about greatly furthering the cause of confederation in Canada.

7. Any group that conducting its meeting using parliamentary rules will encounter situations where prescribed procedures cannot be applied.

8. Carrie Chapman Call organized the League of Women Votes after successfully campaign for the constitutional amendment that gave women the right to vote.

9. Stars derive their energy from thermonuclear reactions that take place in their heat interiors.

10. Some snakes have hollow teeth are called fangs that they use to poison their victims.

11. Some seeds are viable, or capable of growing into healthy plants, for only a few days after fall from the parent tree.

12. Most ocean waves are generated by wind current that agitate the water's surface .

13. Paleoanthropologists examine fossil remains of extinct primates, while physical anthropologists concern with ethnology study the behavior of primates in their natural settings .

14. In a eclipse of the Sun, the regions of umbra experience total eclipse and those of penumbra, partial eclipse.

15. The college that became Harvard University, the oldest institution of higher learning at the United States, was founded in Cambridge, Massachusetts, in 1636.

16. Although have there been better singers and actresses than Ethel Waters, none typifies the rise from rags to riches more dramatically than she .

17. The color and pageantry, keen rivalry , and high level of competition both contribute to the great worldwide interest in the Olympic Games.

18. The Fourth Amendment to the Constitution of the United States regulates the right of the government to search a citizen's personal and property.

19. In the nineteenth century, moving from crowded Britain to relatively sparsely populated North America were seen by many British as an act of patriotism.

20. The membrane surrounding a single-celled animal or plant or any individual cell in a multicellular organism is important in the respiratory and nutritionally processes of that cell.

21. Initially introduced in 1852, the gyroscope consists a spinning device, usually in the form of a wheel, that exhibits strong angular momentum.

22. Art Deed, a style of design popular in the 1920's and 1930's, was used primarily in furniture, jewel , textiles , and interior decoration.

23. Electoral politics in the United States has been dominated by two political parties since the administer of George Washington.

24. In the mid-1960's many artists began to working outdoors on a large scale , making the landscape rather than the studio their arena.

25. The hermit crab, a crustacean that uses an empty shell as a portable refuge to cover its soft abdomen, changes shells as grows .