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The image depicts the carbon cycle with several interconnected processes: sunlight facilitates photosynthesis in plants, which consume carbon dioxide (CO2), and produce organic carbon; plants and animals respire, releasing CO2 back into the atmosphere; decomposition of dead organisms and waste products also contribute to CO2 release; root respiration adds more CO2 to the soil; the ocean uptakes CO2 from the atmosphere; CO2 is emitted from auto and factory emissions; fossil and fossil fuels store carbon; these processes form a continuous cycle of carbon through the ecosystem.
Given the complexity of the image, the above description may not be entirely accurate.
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The picture reveals how the natural carbon cycle system runs. The processes go through the sun, trees, animals, and human beings’ activities. The steps works as a circle and continue. The details are as below.
First, plants have a chemical reaction with the sunlight and CO2 which is called photosynthesis. After that, organic carbon is produced. Moreover, it is not only from plants, it is also released by organic decay, dead animals and waste. After a few decades, these things will change to be fossil fuels which are very important raw material for humans.
Second, Animals and plants respire to breathe out CO2, and then CO2 rise. Apart from the two formers’ respiration, CO2 is also produced by human industrial activities, which are emitted from factories and vehicles. Tons of CO2 rise to the atmosphere. And then CO2, sun and plants continue photosynthesis. The system keeps running like that as usual.
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