The Amount of Oxygen in the Atmosphere Remains Relatively Constant Because it is Given Off by:

  1. Plants
  2. Oceans
  3. Rocks
  4. Animals
Monis Rasool Professor Asked on 27th June 2015 in Environment Science.
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    Plants

    The amount of Oxygen in the Atmosphere remains relatively constant because it is given off by plants.

    Monis Rasool Professor Answered on 28th July 2015.
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