Which of the following provided the selective pressures that most directly promo

Question

Which of the following provided the selective pressures that most directly promoted the evolution of photosynthesis?
A the drop in surface UV radiation caused by the formation of the ozone layer
B the depletion of dissolved organic material from the oceans
C the ability of some organisms to use oxygen to generate ATP during respiration
D an increase in visible light intensity at the surface of the Earth, caused by solar flares
E an increase in volcanic activity and release of CO2 into the atmosphere.

Explanation / Answer

C the ability of some organisms to use oxygen to generate ATP during respiration

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