If there were fewer photosynthesising plants, there would be more oxygen in the atmosphere, which would change the environment.
The primary goal of photosynthesis is to convert solar energy to chemical energy that can be stored for use at a later time. The primary purpose of this process is to supply energy to the planet's living systems. It is not very effective by the standards of human engineering, yet it works.
Photosynthesis is an instance of an endothermic reaction. This indicates that it requires energy to occur. Light is absorbed by the green pigment chlorophyll, which is present in plants. Plants do not have chloroplasts, which contain chlorophyll, in their palisade or spongy mesophyll cells.
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