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Eventually our sun will become a red giant. Explain what this means. What would happen to Earth and our universe if this were to happen?

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Although it currently does not have an ocean, ____ is thought to have had one in the distant past.


A) Europa
B) Saturn
C) Jupiter
D) Mars

E) None of the above
F) A) and B)

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A marine scientist is studying the amount of dissolved oxygen in a particular area. They are attempting to connect the data with the type of organisms found in that area. What kind of marine scientist might they be classified as?


A) Physical oceanographer
B) Chemical oceanographer
C) Marine biologist
D) Marine geologist

E) All of the above
F) None of the above

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The spinning of a shrinking nebula marks the transition from a protostar to a star.

A) True
B) False

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The ocean was mostly in place by 4 billion years ago.

A) True
B) False

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The scientific method is characterized as:


A) an orderly process in which theories are proved to be absolutely true.
B) an orderly process in which a test simplifies an observation in nature by controlling the conditions in which they are made.
C) an orderly process in which theories are verified or rejected.
D) a testable speculation or explanation of a theory.

E) A) and B)
F) A) and C)

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A(n) ____ is an explanation that can be tested by additional observations or controlled experiments.


A) question
B) science
C) hypothesis
D) scientific method

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

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Which is not necessarily a characteristic of a red giant?


A) The engulfing of inner planets
B) The expansion of atmosphere
C) Becoming a supernova
D) Materials sent into space from shattering

E) A) and B)
F) A) and C)

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What process involves the clumping of small particles into larger masses?


A) Condensation
B) Coagulation
C) Secretion
D) Accretion

E) B) and C)
F) A) and B)

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What caused Earth to partially melt when being formed?


A) Impact of asteroids, comets, and debris
B) Gravitational compression
C) Accumulation of decaying radioactive elements
D) A combination of all of these choices

E) B) and C)
F) A) and D)

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Despite a multitude of names given to describe portions of the ocean, it is more accurate to call it a single dynamic world ocean.

A) True
B) False

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____ is a critical aspect of science.


A) The ability to operate in reverse
B) The ability to be refined with new information
C) Looking at data rather than being told
D) All of these choices are critical aspects of science

E) None of the above
F) B) and C)

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What process accounts for the layers found in Earth?


A) Plate tectonics
B) Accretion
C) Density stratification
D) Subduction

E) A) and D)
F) A) and C)

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How much of the Earth's water is found in the ocean?


A) 3%
B) 67%
C) 71%
D) 97%

E) B) and C)
F) A) and D)

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What created Earth's moon?


A) The expulsion of rocky mantle after a collision with a planetary body
B) The initial big bang expansion event
C) The formation of a new star
D) The collision between two older moons

E) None of the above
F) All of the above

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How did the Earth form? How did the ocean form? Include relevant terminology, dates, and processes.

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What key characteristic marks the beginning stages of the collapse of a star?


A) The increase in temperature
B) The depletion of carbon and oxygen
C) The depletion of hydrogen
D) The expulsion of energy

E) A) and B)
F) A) and C)

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The Earth was formed by the condensation of a cloud comprised of dust and gas.

A) True
B) False

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What forms heavy elements such as gold, mercury, and uranium?


A) A protostar
B) Condensation
C) A supernova
D) A solar nebula

E) None of the above
F) A) and B)

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Why is biosynthesis unlikely to occur today as it did in Earth's youth?


A) Living organisms have altered oceanic and atmospheric conditions
B) There is less available oxygen in the atmosphere
C) Ozone is less protective from the sun's influence
D) The ocean's do not contain enough free iron

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

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