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Question
Which of the following is correct regarding Arctic sea ice?A) Until recently, seasonal variations in sea ice extent were rare.
B) Summer sea ice reached its minimum extent in 2001 and has gradually increased since then.
C) Since 1979, summer sea ice minimum extent and winter sea ice maximum extent have declined.
D) In the summer, most to all sea ice melts, only to refreeze in the winter. However, less water has been refreezing over the past decade.
Answer
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Related questions
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The key idea behind the scientific method is
A) the use of intuition in testing theories.
B) an appeal to supernatural explanations when natural explanations have not yet been found for a phenomenon.
C) the testing of ideas through controlled observations and experiments.
D) unbridled speculation about the world.
Q:
Which of the following is the most strongly supported by experimental and observational evidence?
A) speculation
B) hypothesis
C) educated guess
D) theory
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B) place
C) human-Earth relationships
D) movement
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B) involves spatial analysis.
C) uses chronological organization.
D) is field work.
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A) place memorization.
B) the study of rocks.
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In order to study the planetesimal hypothesis, astronomers study this process in other parts of the Galaxy.
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The Milky Way is about 100,000 light-years from side to side.
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The Solar System, Sun, and Earth formed about 4.6 billion years ago.
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B) Spring equinox.
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The basis for defining the length of a day is the fact that
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Which of the following is true of the biosphere?
A) It is never referred to as the ecosphere.
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Q:
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B) graphic
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B) graphic scale.
C) written scale.
D) relative scale.
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The transformation of a spherical global to a 2D surface is a
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B) cone.
C) map projection.
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B) graphic scale.
C) written scale.
D) relative scale.
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