Physics, 05.05.2021 01:50 loveashley1

In the oxygen cycle, oxygen is (Choose one):

1.) added to and removed from the atmosphere by photosynthesis.

2.) added to the atmosphere by cellular respiration and removed by photosynthesis.

3.) added to the atmosphere by decomposers and removed by photosynthesis.

4.) added to the atmosphere by photosynthesis and removed by cellular respiration and combustion.

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In the oxygen cycle, oxygen is (Choose one):

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