1.In the late 1970’s and early 1980’s, the United States developed the reusable space shuttle ……………………….to space cheaper and easier.
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Question 2 of 40
2. Question
Genetically, the chimpanzee is more similar to humans …………………….
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Question 3 of 40
3. Question
3…………………more than 65,000 described species of protozoa, of which more than half are fossils.
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Question 4 of 40
4. Question
4.The Sherman Antitrust Act of 1890 ………………….nearly unanimously through the United States Congress.
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Question 5 of 40
5. Question
5.Modern skyscrapers have a steel skeleton of beams and columns ……………..a three-dimensional grid.
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Question 6 of 40
6. Question
6.The average level of United States prices grew very little from 1953 until the mid-1960’s when ………………………
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Question 7 of 40
7. Question
7.The basis premise behind all agricultural production is……………available the riches of the soil for human consumption.
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Question 8 of 40
8. Question
8………………….to the united states House of Representatives in 1791, Nathaniel Macon remained in office until 1815.
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Question 9 of 40
9. Question
9……………………….of classical ballet in the united states began around 1830.
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Question 10 of 40
10. Question
10.The universe is estimated …………………between 10 billion and 20 billion years old.
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Question 11 of 40
11. Question
A situation in which an economic market is dominated by a ………….is known as a monopoly.
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Question 12 of 40
12. Question
12……………….freshwater species of fish build nests of sticks, stones, or scooped-out sand..
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Question 13 of 40
13. Question
13.Newspaper publishers in the united states have estimated ………………..reads a newspaper every day.
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Question 14 of 40
14. Question
The foundation of all other branches of mathematics is arithmetic,……………….science of calculating with numbers.
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Question 15 of 40
15. Question
15.Nylon was ………………………the human-made fibers.
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Question 16 of 40
16. Question
16.The male cicada sound is made by specialized structures on the abdomen and which apparently serves to attract females.
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Question 17 of 40
17. Question
17.Televisions are now an everyday feature of most households in the United States, and television viewing is the number one activity leisure.
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Question 18 of 40
18. Question
18.Bacteria are one of the most abundant life forms on Earth, growing on and inside another living things, in every type of environment.
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Question 19 of 40
19. Question
19.Fluorine is a greenish gas too active that even water and glass burn in it.
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Question 20 of 40
20. Question
20.In general, novels are thought of extended works of prose fiction depicting the inner and outer lives of their characters.
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Question 21 of 40
21. Question
21.Metabolism is the inclusive term for the chemical reactions by which the cells of an organism transforms energy, maintain their identity, and reproduce.
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Question 22 of 40
22. Question
22.Although most petroleum is produced from underground reservoirs, petroleum occurs in a varieties of forms at the surface.
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Question 23 of 40
23. Question
23.A musical organ can have pipes of two kinds: flue pipes that work like a flute and reed pipes that operate on same principle as a clarinet.
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Question 24 of 40
24. Question
24.The Land Ordinance of 1784 divided the western lands belonging to the United States into territories, each to be govern temporarily by its settlers.
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Question 25 of 40
25. Question
25.If there is too much pituitary hormone of too few insulin, the amount of sugar in the blood rises abnormally, producing a condition called. Hyperglycemia.
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Question 26 of 40
26. Question
26.The care of children during their years of relative helplessness appears to have being the chief incentive for the evolution of family structures.
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Question 27 of 40
27. Question
27. It was not until the 1920’s that pollution came to be viewed by many as a threat to the health of live on Earth.
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Question 28 of 40
28. Question
28.Platelets are tiny blood cells that help transport hormones and other chemicals throughout the body, and it play a role in clotting blood.
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Question 29 of 40
29. Question
Until the twentieth century, pendulum clocks were calibrated against the rotation of earth by taking astronomically measurements.
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Question 30 of 40
30. Question
30.The rapid growth of the world’s population over the past 100 years have led to a great increase in the acreage of land under cultivation.
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Question 31 of 40
31. Question
31.In the eighteenth century, the Pawnees, descendants of the Nebraska culture, lived in villages sizeable on the Loup and Platte rivers in central Nebraska.
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Question 32 of 40
32. Question
32.The attraction of opposite charges is one of the force that keep electrons in orbit around of nucleus of an atom.
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Question 33 of 40
33. Question
33.Of every the major traditions of wood carving, the one that is closest in structure to the tree is the crest pole made by the Native Americans of the Northwest coast.
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Question 34 of 40
34. Question
34.Many of the fine-grained varieties of sedimentary rocks known as shales yield oil when distilled by hot.
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Question 35 of 40
35. Question
35.In 1820 there were only 65 daily newspapers in the united states, which total daily circulation of perhaps 100,000.
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Question 36 of 40
36. Question
36.The Milky Way galaxy includes the Sun, its planets, and rest of the solar system, along with billions of stars and other objects.
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Question 37 of 40
37. Question
37.Some of sharpshooter Annie Oakley’s exploits with a gun are almost unbelievable when it comes to accuracy, speed of firing,and endure.
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Question 38 of 40
38. Question
38.Evidence from ancient fossils indicates the scorpion may had been among the first land animals.
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Question 39 of 40
39. Question
39.Jetties, piers designed to aid in marine navigation, are constructed primary of wood, stone, concrete, or combinations of these materials.
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Question 40 of 40
40. Question
40.The Barnes Foundation in Merion, Pennsylvania, was chartered in 1922 to promotion art education by providing art classes and by establishing a publishing program.