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Which event contributed most directly to the evidence of aerobic organisms?a. an increase in the concentration of methane in the ancient atmosphereb. a decrease in the sun's light intensityc. the presence of organisms able to carry on photosynthesisd. an increase in the number of organisms carrying on fermentation

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Related: Darwin and Natural Selection


1. Which event contributed most directly to the evidence of aerobic organisms?
a. an increase in the concentration of methane in the ancient atmosphere
b. a decrease in the sun's light intensity
c. the presence of organisms able to carry on photosynthesis
d. an increase in the number of organisms carrying on fermentation





 
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