Question

Explain how carbon is cycled through the biosphere, geosphere, hydrosphere, and atmosphere.

Answer 1

Explanation:

Living organisms in the biosphere release carbon dioxide into the atmosphere during cellular respiration. This carbon dioxide in the atmosphere dissolves into the hydrosphere mainly oceans and lakes at the interphase between the atmosphere and hydrosphere. The dissolved carbon dioxide can be utilized again by photosynthetic planktons through photosynthesis. The plankton from the base of a large food web in the marine environment creating large biomasses. When these organisms die, they sink to the bottom of the oceans or lakes taking carbon to the bottom of the oceans. The biomass accumulates with sediments and over many years becomes part of the geosphere as sedimentary rocks.

The rocks may become exposed to the earth’s surface over millions years by tectonic plants. The exposed rocks will become vulnerable to agents of erosion that will unlock the carbon-based minerals in the rocks so they become available to plants and other organisms in the biosphere..and the cycle continues.

Learn More:

For more on the Carbon cycle check out;

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