Atmospheric CO2 originates from various sources such as natural and human activities. CO2 and other natural gases (greenhouse gases) in the air absorb earth’s radiation, taking up atmospheric heat and leading to earth atmospheric warming, (Archer, 2010, p. Even though, a greenhouse also functions by taking up sun energy, the physical processes involved are different.The cycle of carbon is anchored on CO2 occurring in gaseous form in the air ad dissolved in water. Terrestrial lives utilize CO2 from the air to produce oxygen that supports life of animals. Aquatic lives similarly produce oxygen and utilize CO2 from water bodies. O2 is emitted via photosynthesis activity, (Fasham, 2003, p,11). During this process, oxygen emitters such as plant species transfer CO2 and water into dense compounds of starch under the effect of heat from the sun.Only plant species and certain bacteria have the capacity to drive photosynthesis process due to the presence of chlorophyll – found in plant leaves that can absorb energy from the sun. The resulting O2 is crucial to sustain non-producing and consumer forms of life like animal species and other microorganisms. Animals are labeled consumers since they consume plants produced O2. Consumer breathing process returns CO2 back into the air. This released CO2 decompose glucose and some complex organic elements and convert break down carbon into CO2 for producers reuse, (University of Columbia, 2000, p.Carbon is utilized by cycles of users, manufacturers and decomposers faster via the atmosphere, water sources and ecosystem. However, carbon is also kept in tree roots and other organic compounds as biomass for several years. The decomposition activities emit the stored carbon and send it to the air.Under some conditions, dead plant elements buildups rapidly than they are broken down within an environment. The residues are entombed in the underneath deposits. Resultantly, when sentiment layers constrict these elements, fossil fuels form, after several years. Long-standing geological activities may uncover the carbon compounds in such fuels to the atmosphere after prolonged periods, but, in the actual way, fossil fuel carbon is discharged during the processes of humane combustion. Decomposed plants fuels combustion provides energy to humanity. However, the global human population has been
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