Chlorella has in its body two green color substances: "chlorophyll-a" and "chlorophyll b." It uses photosynthesis, similar to plants which also have chlorophyll. It multiplies rapidly, needing only carbon dioxide, water, sunlight, and a small amount of minerals to reproduce.
Many people believe Chlorella can serve as a possible source of food and energy. This is because its photosynthesis process can, in theory, reach 8% efficiency.. This is even better than that of other highly efficient crops such as sugar cane, which are already being used for food and energy.
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