26. Globally, the 1990’s stood out as the warmest decade for what we have weather
A B C D
records.
27. Silicon chips are reliable and cheap to produce in large numbers and are
A
used them in computers, calculators, programmed household appliances, and
B C
most electronic applications.
D
28. Because its pitch cannot easily be altered, the oboe serves as the standard
A B
which by the symphony orchestra is tuned.
C D
29. Bursae are fluid-filled sacs that form cushions between tendons and bones and
A B C
protect them while movement.
D
30. In 1916, United States suffragist Alice Paul founded the National Woman, s Patty,
A
a political party dedicate to establishing equal rights for women.
B C D
31. The spice cinnamon and the drugs cascara and quinine all come from bark, the
A
protective out layer of stems and roots of woody plants.
B C D
32. Tunas migrate long distances over all the world’s oceans and occupy tropical,
A B C
temperate, and even some the cooler waters.
D
33. Taste buds, small sensory organ located on the tongue and palate, recognize four
A B
primary tastes: sweet, sour, salty and bitter.
C D
34. Astronauts receive extensive training to prepare themselves both physically and
A B C
psychologically for complexity and rigor of a space mission.
D
35. By 1900 several prominent technical institutions, including the Massachusetts
A
Institute of Technology, fashioned its own educational offerings to meet the
B C
industrial needs of the United States.
D
36. Some of the earliest mechanical devices were designed to raise water from
A B C
streams for the irrigate of crops.
D
37. The Louisiana Purchase of 1803 increased the territory of the United States
A
by approximate 846,000 square miles, practically doubling the area of the
B C D
United States.
38. A most useful tool for analyzing the elemental composition of fossils is the
A B C
electron probe, a modify electron microscope.
D
39. Few substance on Earth equal the beauty of gemstones such as twinkling
A B C
diamonds, green emeralds, red rubies, blue sapphires, and multicolored opals.
D
40. For the purposes of the fine and decorative arts, metals have been used either in
A B C
their simple state and in uncomplicated alloys.
D