Environment & Ecology · Environmental Studies
Which biological process is primarily responsible for generating the atmospheric oxygen that we breathe?
- 1Evaporative transpiration from dense forest canopies
- 2Decomposition of organic matter by soil bacteria
- 3Cellular respiration in animals and humans
- 4Photosynthesis by terrestrial plants and phytoplankton✓
Correct answer
Photosynthesis by terrestrial plants and phytoplankton
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