GED-Science試験無料問題集「GED Science 認定」
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?
For example, the field mouse is a typical herbivore.
Which statement about herbivores is most accurate?
正解：E
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Air is a mixture of gases, mostly nitrogen and oxygen, but it also contains a small amount of water vapor. Depending on its temperature, water can exist in any of the three states of matter.
In the diagram at the left, water droplets have formed on the outside of the can, and the can contains pieces of ice.
Based on the information and diagram, which statement regarding the droplets on the outside of the can is the most accurate?
In the diagram at the left, water droplets have formed on the outside of the can, and the can contains pieces of ice.
Based on the information and diagram, which statement regarding the droplets on the outside of the can is the most accurate?
正解：C
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Flowers are the reproductive part of some plants. The stamen is the male reproductive organ while the pistil is the female organ. At the tip of the stamen is the anther, which forms pollen grains in which the sperm cells are formed. Pollen grains are transferred to the pistil by wind, water, insects, and other mechanisms.
Which statement best interprets the diagram and information?
Exhibit:
Which statement best interprets the diagram and information?
Exhibit:
正解：A
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Light travels so fast that one can see an event at about the same time that it happens, such as turning on the light. When one sees lightning, it can be assumed that it happened at the same instant it was seen. Sound, on the other hand, travels more slowly. The sound of thunder takes 5 seconds to travel about 1 mile.
Based on the data,
which conclusion is correct?
Based on the data,
which conclusion is correct?
正解：B
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Water on Earth is found in many places. It is found in the atmosphere, the ground, oceans, lakes, rivers, and in the polar ice caps. The continuous movement of water from the atmosphere to Earth's surface and back to the atmosphere, called the water cycle, has four stages: storage on Earth, evaporation from Earth, precipitation from the atmosphere, and runoff on the surface of Earth.
Based on the information and diagram, where would most of the storage of water on Earth occur?
Based on the information and diagram, where would most of the storage of water on Earth occur?
正解：E
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Exhibit: Torque is the measure of a force that produces rotation. A wrench is used to loosen a bolt as shown at the left. The bolt is stuck, so it will require much more torque than is usually needed.
Which replacement given below is most likely to produce the required increase in torque for the wrench?
Which replacement given below is most likely to produce the required increase in torque for the wrench?
正解：C
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Until the mid-nineteenth century, sanitary conditions in hospitals were poor. In 1878, a large percentage of surgical patients developed infections, and many of them died. British physician Joseph Lister devised a method to sterilize the hospital operating room to prevent infection in surgical patients. Lister made sure that all the materials and instruments in the operating room were washed with a strong disinfectant called carbolic acid. As more doctors started to use Lister's procedure, the number of surgical patients who developed infections dropped dramatically.
Based on the information, which statement best explains the effectiveness of Lister's method?
Based on the information, which statement best explains the effectiveness of Lister's method?
正解：D
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