Photosynthesis results in the fixation of
A) carbon.
B) water.
C) nitrogen.
D) oxygen.
E) None of the above
Correct Answer:
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Q15: The second law of thermodynamics states that
Q16: The most prevalent gas in Earth's atmosphere
Q17: Maintaining the capacity of ecosystems to provide
Q18: The hydrologic cycle is driven by
A) the
Q19: Carbon dioxide is called a greenhouse gas
Q21: The layer of Earth's atmosphere that is
Q22: Algal beds contribute very little to Earth's
Q23: If the phenomenon of upwelling did not
Q24: If Earth had no atmosphere, the surface
Q25: The region of a lake in which
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