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 reservoirs of the oceans are also reasonably well known, while there are considerable uncertainties about the size of the carbon reservoirs in the terrestrial biosphere, the pedosphere and the lithosphere. In some cases different estimates are quoted and a best estimate finally chosen.