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Which of the following describes a path oxygen might follow as it cycles?
A. Bird exhales. β Oxygen combines with hydrogen to produce rain.
Oxygen is taken in through a plant's roots.
B. Plant releases oxygen as a byproduct of photosynthesis. β
Oxygen molecules diffuse through the atmosphere.
> Bird
inhales.
C. Oxygen percolates through the soil. β Oxygen enters the ocean
and evaporates. β Bird inhales.
D. Bird exhales. β Oxygen molecules diffuse through the oceans. β
Plant takes oxygen in for photosynthesis.
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Which of the following describes a path oxygen might follow as it cycles?
A. Bird exhales. β Oxygen...
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