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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-Writing
Nom d'Examen: GED (GED Language Arts - Writing (Essay Writing Exam))
Questions et réponses: 300 Q&As
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NO.1 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.2 The pancreas regulates blood sugar level through two hormones: insulin and glucagon. When
the blood sugar level is high, the pancreas releases insulin, which lowers the sugar level in the blood.
When the blood sugar level is low, the pancreas releases glucagon, which causes the cells to release
sugar.
Why do people who are diabetics have a high blood sugar level?
A. They eat too much food with sugar.
B. Their cells do not use sugar.
C. Their pancreas does not release enough insulin.
D. Their pancreas does not release enough glucagon.
E. They do not eat enough food with sugar.
Answer: C
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NO.3 In the food web shown below, the arrows show the flow of energy through an ecosystem.
Each arrow points from a given plant or animal to a second animal; the animal that the arrow points
to would get its energy by eating the first plant or animal.
For example, the field mouse is a typical herbivore.
Which statement about herbivores is most accurate?
A. Herbivores get their energy from dead snakes and hawks.
B. Herbivores are meat eaters.
C. Herbivores are plant eaters.
D. Herbivores eat both plants and animals.
E. Mice, shrubs, and hawks are typical herbivores.
Answer: C
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NO.4 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.5 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.6 In asexual reproduction, one cell or a group of cells from a single parent develops into an
offspring genetically identical to the parent.
Which statement would likely be considered a disadvantage to the long-term survival for an organism
that reproduces by asexual reproduction?
A. The organism doesn't need to find a mate.
B. Reproducing asexually is much faster.
C. Asexual reproduction is more convenient.
D. The offspring is a copy of the successful parent.
E. There is a lack of variation in the organism.
Answer: E
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NO.7 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.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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