Question

oxygen forms _______ % of the environment ​

Answer 1

Answer:

roughly one-third (28%) of the Earth's oxygen but most (70%) of the oxygen in the atmosphere is produced by marine plants. The remaining 2 percent of Earth's oxygen comes from other sources. The ocean produces oxygen through the plants (phytoplankton, kelp, and algal plankton) that live in it.

Explanation:

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(answer 70 % ) okkk

Answer 2

Answer:

Oxygen Forms 21 % of the environment