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試験番号：GED-Science問題集試験科目：GED Science Exam
最近更新時間：2014-10-22
問題と解答：全300問 GED-Science 最新な問題集
100％の返金保証。1年間の無料アップデート。
試験番号：GED-Writing問題集試験科目：GED Language Arts - Writing (Essay Writing Exam)
最近更新時間：2014-10-22
問題と解答：全300問 GED-Writing 全真問題集
100％の返金保証。1年間の無料アップデート。
試験番号：GED-Mathematics問題集試験科目：GED Mathematical Reasoning Exam (Mathematics)
最近更新時間：2014-10-22
問題と解答：全300問 GED-Mathematics 練習問題
100％の返金保証。1年間の無料アップデート。
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NO.1 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.2 Cholera is a disease caused by a bacterium that is transmitted by water, shellfish, and raw
vegetables. The major symptom is severe diarrhea. Epidemics of cholera in the Americas, common in
the 19th century, are much less frequent now with the advent of modern medicine and improved
methods of hygiene.
However, in 1991, the number of cholera epidemics increased again in one South American country,
causing over 4000 deaths.
The high number of cases of cholera in the South American country noted above was most probably
due to which factor?
A. prolonged smoking of cigarettes
B. lack of variety in foods
C. poor water and sewage treatment
D. eating the wrong kinds of foods
E. widespread overuse of antibiotics
Answer: C
GED参考書 GED-Science取得 GED-Science GED-Science
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 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.5 Which statement identifies the difference between a substance in liquid state and a substance
in solid form?
A. more space exists between its molecules in a liquid state
B. the molecules contain more heat energy in its solid state
C. the molecules are less active in its liquid state
D. the molecules are large in its liquid state
E. the molecules are large in its solid state
Answer: A
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NO.6 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
GED過去 GED-Science認定証 GED-Science
NO.7 Making products from recycled materials, such as aluminum cans, glass, and plastic usually
saves energy and other resources. For example, it takes about 75% less energy to make steel from
scrap than from ore. All forms of recycling involve some energy to produce the recycled materials, a
process that also results in the production of some pollution.
The chart at the left shows the energy savings from recycling.
When Anil is at the grocery store, he can choose to buy juice in a glass bottle, an aluminum can, a
plastic jug, a juice box (paper), or foil-covered juice container.
If Anil's community requires that he recycles, which container would provide the MOST overall
energy savings?
A. aluminum can
B. plastic jug
C. waxy, cardboard juice box
D. glass bottle
E. foil-covered container
Answer: A
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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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