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GED-Science Latest Exam (Sep 2017)

[Free] 2017(Sep) EnsurePass Testking GED GED-Science Dumps with VCE and PDF 181-190

September 26, 2017

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2017 Sep GED Official New Released GED-Science
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GED Science Exam

Question No: 181

The table at the left lists the thermal conductivity of several common substances.The lower the thermal conductivity of a substance, the slower the transfer of energy as heat.

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Equal amounts of hot soup at the same temperature are placed in identical, closed containers made of the materials listed below.

Based on the information and chart, which container would keep the soup warm longer?

  1. zinc

  2. brass

  3. copper

  4. steel

  5. glass

Answer: E

Question No: 182

A scientist published his work in a scientific journal, and it generated much excitement in the scientific community. However, when other scientists across the world did the same experiment to try and repeat the results, it proved to be impossible.

When this type of event occurs, which statement describes the most important factor about a scientific finding’s acceptance by the scientific community?

  1. presented by a team of scientists

  2. reproducible by other scientists

  3. of considerable practical value

  4. published in a scientific journal

  5. based on an important concept

Answer: B

Question No: 183

Exhibit:

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Based on the information, which statement is NOT true of the Gammarus?

  1. are primarily fresh water organisms

  2. are part of the food chain

  3. have structures often related to their function

  4. are able to make their own food

  5. are helpful in assessing some pollutants

Answer: D

Question No: 184

Exhibit:

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Based on the information, which statement best summarizes the role of the Gammarus as a biomonitor?

  1. provide an effective tool for assessing the level of certain toxic metals in fresh water

  2. provide for the rapid cleanup of water pollutants

  3. prevent water pollution from occurring

  4. destroy infectious bacteria and viruses

  5. aid in measuring the photosynthetic rate of fresh water plants

Answer: A

Question No: 185

A series circuit is one in which current flows only in one path. The same amount of current flows through the entire circuit when it is in series, and each bulb receives the same amount of current. If there is a break in the circuit, none of the bulbs will light.

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The diagram at the left shows a series circuit. Which is an example of a series circuit?

  1. car headlights with high and low beams

  2. fluorescent ceiling lights

  3. a string of lights that goes out at the same time if one bulb burns out

  4. a chandelier

  5. ceiling light fixture with 3 lightbulbs

Answer: C

Question No: 186

A scientist uses a laboratory mouse to complete an experiment involving a maze. During each trial, the mouse runs through the maze, and the scientist counts the number of errors that the mouse makes before it reaches the end of the maze. The mouse goes through the maze a total of six times. The scientist’s data are shown in the table at the left.

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Based on the information and graph, which statement is the best interpretation?

  1. The mouse made more errors after completing several runs through the maze.

  2. The mouse made the same number of errors during each run through the maze.

  3. The mouse reduced the number of errors made during the six runs through the maze.

  4. The number of errors that the mouse made decreased an equal amount during each subsequent run through the maze.

  5. The number of errors that the mouse made varied erratically during the six runs through the maze.

Answer: C

Question No: 187

A tsunami is an unusually large ocean wave, which is sometimes formed by earthquakes.

The height of a tsunami increases as it approaches shore. In the open ocean, tsunamis can travel at 300 to 400 miles per hour.

Based on this information, which statement must be true?

  1. Tsunamis have killed millions of people in this century.

  2. The height of a tsunami located 100 miles offshore is low.

  3. Tsunamis are sometimes found in small lakes.

  4. Tsunamis travel at 100 miles per hour.

  5. There are no known causes of tsunamis.

Answer: B

Question No: 188

Dr. Mullin collected data on the number of leaves that fell from a tree. She noticed that the number of leaves that fell varied substantially during the seasons of the year. The graph at the left describes Dr. Mullin’s findings.

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Based on the information and graph, which action would best help explain the data?

  1. measure the tree’s height

  2. measure the tree’s diameter

  3. measure the tree’s circumference

  4. measure the length of the tree’s upper and lower branches

  5. analyze the seasonal weather patterns of the area

Answer: E

Question No: 189

Atoms in gases are in constant motion and in constant collision with each other. When atoms of A and B collide, they react to form a product P.

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What is the effect of increasing pressure on the gases?

  1. an increase in P

  2. a decrease in P

  3. an increase in A

  4. an increase in B

  5. no change in A, B, or P

Answer: A

Question No: 190

Yeast is a fungus that is used in making bread. As the yeast cells reproduce and feed, they ferment sugars to produce ethyl alcohol and carbon dioxide gas. The carbon dioxide forms bubbles in the dough, causing the dough to rise. How fast the dough rises depends on temperature.

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Three portions of dough weighing exactly the same are allowed to rise for 45 minutes at three different temperatures. At the end of forty-five minutes, the volume of each portion is measured. The results of the experiment are listed in the table at the left.

Based on the chart, which statement is an accurate conclusion?

  1. Yeast cells at 20掳 C metabolize the fastest.

  2. Yeast cells at 25掳 C metabolize the fastest.

  3. Yeast cells at 37掳 C metabolize the fastest.

  4. Carbon dioxide slows yeast cell metabolism.

  5. Carbon dioxide speeds up yeast cell metabolism.

Answer: C

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