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Question
Seasonal fluctuations in CO2 emissions reflectA) increased fuel use for home and building heat in winter months.
B) seasonal changes in vegetation cover in the higher latitudes of the Northern Hemisphere.
C) geothermal activity, which is highest in the fall.
D) summer melting in the tundra.
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.
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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
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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 Solar System, Sun, and Earth formed about 4.6 billion years ago.
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A) It is never referred to as the ecosphere.
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C) written scale.
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