pukiepretty pukiepretty

09-12-2017
Biology

contestada

What was the major contributor of oxygen to earth's early atmosphere? A) photosynthesis B) organic respiration C) ozone decomposition D) decomposition of ocean water

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Kaikerscupcake Kaikerscupcake

09-12-2017

The best answer would be choice "A". 'Photosynthesis' The outcome, or release of photosynthesis is oxygen. We depend deeply on vegetation for oxygen.

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Brainliest answer would be appreciated!

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makaristokes1105 makaristokes1105

19-03-2020

Answer: A

Explanation:

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