From Where Did the Molecular Oxygen in Earth's Atmosphere Originate

question 45

Multiple Choice

From where did the molecular oxygen in Earth's atmosphere originate?

• A)photosynthesis from plant life
• B)photosynthesis from single-celled organisms
• C)outgassing from volcanoes
• D)atmospheric bombardment
• E)oxidation of surface rocks

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A quantitative measure in statistics that assesses the discriminating power of a variable in differentiating between two or more groups.

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