_____crumbles readily when exposed to a moist, acid atmosphere, but the stone is durable in a dry atmosphere.
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Question 2 of 40
2. Question
2. By using their trunks, elephants can tell the shape of an object and _____ is rough or smooth, or hot or cold.
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Question 3 of 40
3. Question
3. In 1989 Carret Hongo was chosen as _____ for the Pulitzer Prize in poetry.
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Question 4 of 40
4. Question
4. The Moon is much closer to Earth _____ is the Sun, and thus it had greater influence on the tides.
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Question 5 of 40
5. Question
5. The brain of an average adult is one of the largest organs of the body, _____about three pounds.
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Question 6 of 40
6. Question
6. Throughout history _____different representations for numbers and for the basic process of counting.
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Question 7 of 40
7. Question
7. Democratic governments constantly face the problem of balancing _____ the individual with the needs of society.
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Question 8 of 40
8. Question
8. Connecticut was the fifth of the original thirteen states _____ the Constitution of the UnitedStates.
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Question 9 of 40
9. Question
9. The chemical composition of sandstone is the same as _____
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Question 10 of 40
10. Question
10. Hydrofoils can exceed 75 miles per hour, as compared with conventional watercraft, whose maximum speeds _____ approach 50 miles per hour.
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Question 11 of 40
11. Question
It was novelist and poet _____ in 1968 founded Jackson State University’s Institute for the Study of the History, Life, and Culture of Black People.
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Question 12 of 40
12. Question
12. Before the Europeans arrived, American Indians were using virgin copper _____ into ornaments, knives, and other artifacts.
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Question 13 of 40
13. Question
Before the Europeans arrived, American Indians were using virgin copper _____ into ornaments, knives, and other artifacts.
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Question 14 of 40
14. Question
In western North America, _____ form the Great Divide, which separates the areas from which waters flow either eastward to the Atlantic or westward to the Pacific.
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Question 15 of 40
15. Question
Some ecologists believe _____ more than 50 percent of existing species will be lost in the next 100 years.
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Question 16 of 40
16. Question
Almost _____ substances expand in volume when heated and contract when cooled.
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Question 17 of 40
17. Question
A children’s librarian often conducts story hours and other activities to help children enjoy herself while developing an interest in reading and the library’s resources.
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Question 18 of 40
18. Question
Titanium has the strength of steel but weighs half only as much, hence its advantage for use in aircraft.
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Question 19 of 40
19. Question
Protective behaviors of amphibians include hiding in the presence of danger and having coloration such closely matching the environment that the animal is not obvious.
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Question 20 of 40
20. Question
As the highest-paid star of the silent screen, earning a reputedly income of $20, 000 a week, Gloria Swanson epitomized the glamour of Hollywood in the 1920’s.
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Question 21 of 40
21. Question
Candles may be made by repeatedly dipping wicks in tallow, by molding, nor by pouring melted wax over the wicks and rolling them into shape.
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Question 22 of 40
22. Question
While models of automobiles date back as far as the late 1600’s, the 1880’s seen the first commercial interest in the vehicle.
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Question 23 of 40
23. Question
The conceptual of musical harmony is generally traced to the ninth century because it is first mentioned in treatises of that period.
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Question 24 of 40
24. Question
Paleontologists have examined fossil embryos and hatchlings from three type of duck-billed dinosaurs to figure out how they matured.
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Question 25 of 40
25. Question
Lightning tends to strike the nearest good conductor, and hence often strikes in same place more than once.
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Question 26 of 40
26. Question
When study different cultures and societies, anthropologists often focus on marriage as a contractual agreement between different parties.
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Question 27 of 40
27. Question
The first piloted balloon flight across the Atlantic Ocean took place at 1978.
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Question 28 of 40
28. Question
The Arts and Crafts Movement of the late nineteenth century strove to revitalizing handicrafts and applied arts during an era of increasing mass production.
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Question 29 of 40
29. Question
When cannedusing proper methods, food suffers no loss in vitamins or another nutritive elements.
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Question 30 of 40
30. Question
Heat exhaustion is causing by excessive loss of body fluids and body salts.
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Question 31 of 40
31. Question
Primitive humans probably did not deliberately cook food until long after they had learned to use fire for light and warm.
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Question 32 of 40
32. Question
The poor condition of prisoners are what concerned Dorothea Dix, an American social worker and director of a school in Boston.
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Question 33 of 40
33. Question
Found in the shells of lobsters, shrimp, and crabs, glucosamine is also present in human cartilage, which covering the bones in joints.
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Question 34 of 40
34. Question
In the nineteenth century, Montreal grew into an important transportation and industrial center, aided by its many natural resources and an abundant of hydroelectric power.
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Question 35 of 40
35. Question
In the initial planning for theaters, auditoriums, but any room intended primarily for listening, acoustics is a major consideration.
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Question 36 of 40
36. Question
The pulse that may be felt wherever an artery passes over a solid structure, such as a bone or cartilage.
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Question 37 of 40
37. Question
Through his essays, poems, and lectures, Ralph Waldo Emerson established himself as a major thinker of his time and as a figure leading of American literature.
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Question 38 of 40
38. Question
The “method”, which is both a style of acting a system of training for the actor, stresses inner motivation and psychological truth.
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Question 39 of 40
39. Question
On September 6, 1996, civil rights activist Rosa Parks was awarded the Presidential Medal of Freedom, the highest honor the United States government gives to civilian.
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Question 40 of 40
40. Question
Basalt, which composes most of the ocean floor, is a dark-grey rock rich in iron and magnesium than most surface rocks.