최신GED Science - GED-Science무료샘플문제
문제1
Earth's atmosphere contains naturally-occurring ozone. Ozone, which contains three oxygen atoms joined together (O3), forms a layer miles above Earth's surface. The layer serves as a shield from the harmful ultraviolet rays of the Sun.
A group of chemicals called CFCs (chlorofluorocarbons) are used as refrigerants, propellants, and cleaning solvents. At Earth's surface CFCs are chemically stable. However, CFC molecules can be broken apart high in the atmosphere and they can destroy the protective ozone layer.
Based on the information, which action would reduce the destruction of the ozone layer?
Earth's atmosphere contains naturally-occurring ozone. Ozone, which contains three oxygen atoms joined together (O3), forms a layer miles above Earth's surface. The layer serves as a shield from the harmful ultraviolet rays of the Sun.
A group of chemicals called CFCs (chlorofluorocarbons) are used as refrigerants, propellants, and cleaning solvents. At Earth's surface CFCs are chemically stable. However, CFC molecules can be broken apart high in the atmosphere and they can destroy the protective ozone layer.
Based on the information, which action would reduce the destruction of the ozone layer?
정답: B
문제2
What is the underlying principle behind the operation of a jet engine? Exhibit:
Exhibit:
What is the underlying principle behind the operation of a jet engine? Exhibit:
Exhibit:
정답: A
문제3
Exhibit:
Which claim in the advertisement could be most readily tested in a carefully controlled experiment?
Exhibit:
Which claim in the advertisement could be most readily tested in a carefully controlled experiment?
정답: B
문제4
Based on the graph,
Which conclusion best describes the level of pollution during this period of time?
Based on the graph,
Which conclusion best describes the level of pollution during this period of time?
정답: A
문제5
A pet shop wants to install a fountain that contains live fish. The temperature in the facility is kept at 67(degrees) F (19(degrees) C) throughout the year.
The following chart gives the preferred temperature range for certain fish species.
Which fish would be most likely to thrive in this environment?
A pet shop wants to install a fountain that contains live fish. The temperature in the facility is kept at 67(degrees) F (19(degrees) C) throughout the year.
The following chart gives the preferred temperature range for certain fish species.
Which fish would be most likely to thrive in this environment?
정답: D
문제6
Exhibit:
Which of the following persons would most likely have the information found in the table?
Exhibit:
Which of the following persons would most likely have the information found in the table?
정답: D
문제7
Exhibit: According to the article, about 5 percent of all children born have genes containing which component?
Exhibit: According to the article, about 5 percent of all children born have genes containing which component?
정답: E
문제8
The disposal of solid wastes is a growing problem. One solution is to bury waste between layers of earth to build up low-lying land. Another solution is to burn waste to produce energy.
From an environmental perspective, what information is most needed to select the best method of maintaining a clean environment?
The disposal of solid wastes is a growing problem. One solution is to bury waste between layers of earth to build up low-lying land. Another solution is to burn waste to produce energy.
From an environmental perspective, what information is most needed to select the best method of maintaining a clean environment?
정답: E
문제9
-- Exhibit- -- Exhibit -
According to the map, what do the states of Minnesota, Louisiana, Colorado, and Delaware have in common?
-- Exhibit- -- Exhibit -
According to the map, what do the states of Minnesota, Louisiana, Colorado, and Delaware have in common?
정답: C