The evolution of photosynthesis resulted in a. an increase in the amount of O2 in the atmosphere. b. the initial appearance of heterotrophs. c. global warming. d. an increase in the amount of CO2 in the atmosphere

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Photosynthesis

Plants have a capacity that we humans can only imagine— the ability to produce food from sunlight. Sure, we can prepare some dishes that we can savor on, but it become possible because of the plants (as they serve as a producers of all the raw materials required). Photosynthesis is the method of assembling carbohydrates with the aid of sunlight.