Question

explain the carbon cycle in nature

Answer 1

The carbon cycle is the process through which carbon is cycled through the air, ground, plants, animals, and fossil fuels. People and animals inhale oxygen from the air and exhale carbon dioxide (CO2), while plants absorb CO2 for photosynthesis and emit oxygen back into the atmosphere. Carbon dioxide is also exchanged between the atmosphere and the oceans. This natural system of processes keeps CO2 levels in the atmosphere stable over time. The figure below depicts the carbon cycle by showing how carbon moves between land, the atmosphere, and the ocean through various natural- and human-initiated processes. On land, carbon is contained within formations, the soil, plants, and animals. When these decompose, the carbon can be emitted to the atmosphere as CO2. Once in the atmosphere, the carbon can then be absorbed by the oceans or by a land/ocean-based plant or shell-bearing animal. It is important to note that only a small amount of the Earth’s carbon moves through the carbon cycle each year.

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Answer 2

Answer:

The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth. Carbon is the main component of biological compounds as well as a major component of many minerals such as limestone.