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.
Definition. Carbon-storing natural feature (such as a forest or the land mass) that exchanges carbon with other reservoirs. A reservoir from which no outflow of carbon compounds takes place is called carbon sink.
Carbon is found in the non-living part of the hydrosphere, atmosphere, and geosphere as: 1  carbonate (CaCO 3) rocks: limestone and coral. 2  dead organic matter, such as humus in soil. 3  fossil fuels from dead organic matter (coal, oil, natural gas). 4  carbon dioxide (CO 2) in the air.