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GED Science Exam

Question No: 11

A newly hatched chicken will peck at any spots on the ground that are a color different from the ground. This behavior is instinctive and only about 15 percent of the pecks lead to food. However, with time, the chick’s accuracy in using pecks to pick up food improves.

To what can we attribute this more accurate feeding behavior?

  1. The mother hen instructed the young chick.

  2. Information was obtained from other chicks.

  3. Trial and error on the part of the chick improved feeding success.

  4. More food was made available to the chick.

  5. The chick competed with other chicks.

Answer: C

Question No: 12

A person is interested in trilobites. A book on which subject would most likely furnish information about trilobites?

image

  1. physics

  2. chemistry

  3. biology

  4. nutrition

  5. astronomy

Answer: C

Question No: 13

A tour guide points to a water-filled tank containing live specimens and says, 鈥淎ncestors of this organism developed earlier in Earth’s history than any other organism here at the

aquarium.鈥?/p>

image

The guide must have been speaking about which organism?

  1. sponge

  2. trilobite

  3. fern

  4. flowering plant

  5. mammal

Answer: A

Question No: 14

What group of organisms would thrive as a result of land masses increasing and sea levels receding?

image

  1. sponge

  2. trilobite

  3. flowering plant

  4. starfish

  5. tuna

Answer: C

Question No: 15

Beginnings of new time spans are characterized by major changes in life-forms. Which time would represent the beginning of a new time period (in millions of years ago)?

image

A. 430

B. 395

C. 300

D. 225

E. 100

Answer: D

Question No: 16

According to the information in the bar graph, what was the dominant energy source in the United States for the years 1970 and 1997?

image

  1. coal

  2. hydroelectric

  3. natural gas

  4. nuclear

  5. oil

Answer: E

Question No: 17

According to the bar graph, in 1997, the use of which energy source(s) most closely paralleled the use of coal?

image

  1. hydroelectric

  2. nuclear

  3. oil

  4. natural gas

  5. coal and oil

Answer: D

Question No: 18

If 1970-1997 trends continue, which statement could be predicted from the bar graph?

image

  1. Use of oil for energy production will decrease.

  2. Use of hydroelectric energy will increase.

  3. Use of coal for energy production will increase.

  4. Use of nuclear power will remain the same.

  5. Total energy use will decrease in the future.

Answer: C

Question No: 19

Which of the following represents the approximate combined use (in quads) of natural gas and oil in 1997?

image

  1. 22

  2. 28

  3. 36

  4. 58

  5. 72

Answer: D

Question No: 20

The physical and chemical properties of a substance are affected by many factors, such as the molecular makeup of a substance and its temperature. The thicker and more viscous a liquid is, the more slowly an object should fall through it.

image

In which of the following situations would a marble be MOST LIKELY to fall at the fastest rate when dropped into syrup in a graduated cylinder?

  1. syrup warmed for 20 minutes

  2. syrup kept at room temperature

  3. syrup stored in the refrigerator for an hour

  4. syrup stored in the freezer for an hour

  5. syrup stirred in a blender for 10 minutes at room temperature

Answer: A

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