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Code d'Examen: GED-Science
Nom d'Examen: GED (GED Science Exam)
Questions et réponses: 300 Q&As
Code d'Examen: GED-Social-Studies
Nom d'Examen: GED (GED Social Studies Exam)
Questions et réponses: 300 Q&As
Code d'Examen: GED-Writing
Nom d'Examen: GED (GED Language Arts - Writing (Essay Writing Exam))
Questions et réponses: 300 Q&As
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NO.1 Why is algin used in a chocolate milk shake?
A. provides a dark chocolate color
B. makes the milk shake thick and creamy
C. enhances the chocolate flavor
D. makes the milk shake cold
E. forces the milk shake to melt
Answer: B
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NO.2 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.
Based on the information and graph, which statement is the best interpretation?
A. The mouse made more errors after completing several runs through the maze.
B. The mouse made the same number of errors during each run through the maze.
C. The mouse reduced the number of errors made during the six runs through the maze.
D. The number of errors that the mouse made decreased an equal amount during each subsequent
run through the maze.
E. The number of errors that the mouse made varied erratically during the six runs through the maze.
Answer: C
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NO.3 A cell, the basic unit of living things, contains microscopic structures called organelles. A group
of specialized cells of the same type forms a tissue, such as muscle or nerve tissue. An organ such as
the liver is composed of different kinds of tissues that contribute to its overall function. A group of
related organs form an organ system, such as the digestive system. A living organism may contain a
number of organ systems working together to carry on the life functions.
Based on the information, in which category does the human heart belong?
A. cell
B. tissue
C. organ
D. organ system
E. organelle
Answer: C
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NO.4 Based on the information, where would one find wispy, feathery clouds?
A. at Earth's surface
B. high in the atmosphere
C. below an altitude of 2000 meters
D. low in the atmosphere
E. close to Earth as well as high in the atmosphere
Answer: B
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NO.5 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?
A. The mother hen instructed the young chick.
B. Information was obtained from other chicks.
C. Trial and error on the part of the chick improved feeding success.
D. More food was made available to the chick.
E. The chick competed with other chicks.
Answer: C
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NO.6 The pH of a liquid is a measure of its acidity or its alkalinity. Even small changes in pH of human
blood can cause very serious health problems.
Carbon dioxide (CO2), is one of the dissolved gases present in healthy blood. CO2 normally mixes
with the water in blood to form a mild acid, carbonic acid, which lowers the blood pH.If a health
problem causes the dissolved carbon dioxide to increase or decrease, the blood's pH would change
and could produce an unhealthy pH level.
Based on this information, which statement best summarizes the blood condition that might result
when an individual has a respiratory condition that causes the blood to contain too much CO2?
A. The blood pH will remain the same.
B. The blood pH will be lowered.
C. The blood will be less acidic.
D. The blood's white cell count will be greatly decreased.
E. The blood will clot more quickly.
Answer: B
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NO.7 The greenhouse effect explains why a car's interior can get hot on a sunny day even if it is cool
outside. The glass windows allow the Sun's rays to pass through to the interior but
prevent heat rays from escaping to the outside. Certain gases, such as carbon dioxide and nitrous
oxide, act like the glass in a greenhouse when they are present in the atmosphere.
Both natural and human activities lead to the release of gases that contribute to the greenhouse
effect. During recent summers, forest fires have contributed to the loss of millions of acres of forest.
These fires have resulted in the release of smoke and ash as well as greenhouse gases.
Based on the information, which statement most likely predicts the result of ongoing widespread
forest fires?
A. Forest fires are unlikely to affect atmospheric temperature.
B. Forest fires decrease the amount of atmospheric greenhouse gases.
C. Greenhouse gases could help form new animal species.
D. There could be a gradual increase in average atmospheric temperatures.
E. There could be a gradual decrease in average atmospheric temperatures.
Answer: D
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NO.8 The following symbols represent a shortcut for representing an element. For example, O
stands for oxygen, H for hydrogen, and C for carbon. H2O is the formula for water. The subscript 2 in
the formula indicates that there are two atoms of hydrogen in a water molecule. If there is no
subscript after a symbol, the subscript is assumed to be one. Therefore, one molecule of water
contains three atoms: two hydrogen atoms and one oxygen atom.
Based on the information, how many atoms are represented in C12H22O11?
A. 3
B. 11
C. 12
D. 22
E. 45
Answer: E
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