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.
Reservoirs are the total amount of carbon that is present in a component of the Earth that participates in the carbon cycle. These reservoirs are conveniently measured in the units of Gigatons of carbon, or GtC, which means a billion tons of carbon. Atmosphere: contains at present 750 GtC.