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.
Reservoirs: Seven Lakes Lake Number Five (A), Seven Lakes Lake Number Three (B), Seven Lakes Lake Number Four (C), Seven Lakes Number One (D), Seven Lakes Lake Number Two (E). Display/hide their locations on the map.