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The correct arrangement of astronomical bodies from oldest to youngest is:


A) galaxy,solar system,planet.
B) planet,galaxy,solar system.
C) planet,solar system,galaxy.
D) solar system,galaxy,planet.
E) solar system,planet,galaxy.

F) None of the above
G) C) and D)

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Free oxygen in our atmosphere is important to the development and maintenance of life on Earth because oxygen:


A) combines with iron in volcanic rocks.
B) can form ozone and block some UV radiation.
C) is necessary for photosynthesis to occur.
D) reduces atmospheric temperature.
E) was very abundant in our early atmosphere.

F) None of the above
G) All of the above

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In general,the chemical composition of ocean water has remained constant through geologic time.

A) True
B) False

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.The separation of the Earth into layers was the result of the:


A) decrease in temperature downward toward the core.
B) differing densities of the rock and mineral materials.
C) gravitational force created by the rotating Earth.
D) initial collection of materials and their position in Earth.
E) presence of water at Earth's surface.

F) A) and B)
G) A) and C)

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B

Significant oceanographic knowledge was acquired during the Middle Ages.

A) True
B) False

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When the Earth cooled,the layers of the earth separated based on density differences.

A) True
B) False

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Early Polynesians only traveled within sight of land.

A) True
B) False

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Heterotrophic organisms can make their own food from inorganic carbon sources.

A) True
B) False

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Match the term or person with the appropriate phrase.You may use each answer once,more than once or not at all.

Premises
mantle
crust
galaxy
nebula
core
Responses
composed of iron and nickel, liquid outer ayer and solid inner layer
solar winds
gaseous and dusty space cloud
Big Bang
rich in ferromagnesian minerals, between crust and core
Milky Way
outermost portion of the Earth, basalt and granite

Correct Answer

composed of iron and nickel, liquid outer ayer and solid inner layer
solar winds
gaseous and dusty space cloud
Big Bang
rich in ferromagnesian minerals, between crust and core
Milky Way
outermost portion of the Earth, basalt and granite

Radioactive isotopes can sometimes be used to determine the:


A) absolute age of the rock.
B) chemical composition of the rock.
C) formation method.
D) metamorphism.
E) relative age of the rock.

F) B) and C)
G) C) and E)

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The salinity of the oceans has been steadily increasing.

A) True
B) False

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Free oxygen was present in the Earth's primordial atmosphere.

A) True
B) False

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False

Earth's primordial atmosphere most likely included:


A) ammonia,carbon dioxide,and water vapor.
B) carbon dioxide,water vapor,sulfur dioxide,and methane.
C) hydrogen,helium,and oxygen.
D) nitrogen,ozone,and sulfur dioxide.
E) all of the above.

F) A) and D)
G) A) and B)

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The nebular hypothesis suggest that:


A) Earth's moon is an asteroid captured by the Earth's gravity.
B) galaxies such as the Milky Way form independent of one another.
C) the Earth was formed a cosmic explosion,a "big bang".
D) the moon is derived from a protoplanet.
E) all bodies in the solar system formed from an enormous gas cloud.

F) D) and E)
G) A) and B)

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The mantle could not have produced enough water to fill the oceans.

A) True
B) False

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The Ming Dynasty ships used magnetic compasses similar to those used today.

A) True
B) False

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Vikings led by Thor Heyerdahl established temporary colonies in North America.

A) True
B) False

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Which of the following statements regarding continental and oceanic crust is TRUE?


A) Continental crust and oceanic crust have equivalent densities.
B) Continental crust is thicker and denser than oceanic crust.
C) Continental crust is thinner and denser than oceanic crust.
D) Continental crust is thicker and less dense than oceanic crust.
E) Continental crust is thinner and less dense than oceanic crust.

F) B) and E)
G) A) and B)

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D

The four principle oceans of the Earth are the:


A) Antarctic,Arctic,Indian,and Pacific Oceans.
B) Atlantic,Arctic,Indian,and Pacific Oceans.
C) Atlantic,Antarctic,Mediterranean,and Pacific Oceans.
D) Antarctic,Caspian,Indian,and Pacific Oceans.
E) Atlantic,Arctic,Mediterranean,and Pacific Oceans.

F) A) and D)
G) B) and C)

Correct Answer

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Production of the first free oxygen in the atmosphere caused organisms living at that time to flourish.

A) True
B) False

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