Sore throat is a symptom, not a disease. In each case, there was a different cause that dictated a different treatment. The scratchy throat probably was a mechanical problem caused by dry, heated winter air and aggravated by my friend's tendency to breathe through her mouth when she sleeps.
Biogeochemistry includes the history of the great carbon reservoirs in the crust of the Earth, like limestone rocks and the coal deposits, as well as the distribution of nitrate and phosphate in the ocean.
The carbon cycle describes the storage and exchange of carbon between the Earth's biosphere, atmosphere, hydrosphere, and geosphere. NASA. The carbon cycle describes the storage and exchange of carbon between the Earth's biosphere (living matter), atmosphere (air), hydrosphere (water), and geosphere (earth). Carbon is an element that is essential for life as we know it. Living organisms obtain carbon from their environment.