Conditions affecting the hearing bones: otosclerosis. Otosclerosis is the most common cause of hearing loss in young people. It's a condition of abnormal bone growth affecting the stapes, the third of the three little bones in the middle ear.
Hydroelectric dams use water to produce electricity. Natural water resources include lakes, rivers, streams, ice pack, groundwater, precipitation and oceans. As global climate change begins to affect the distribution of water resources in the United States, water use in all sectors is coming under increasing scrutiny.
Reasonable Use Rate It would seem obvious that a natural resource like water cannot be used indefinitely at a greater rate than it can be renewed, which usually occurs via natural processes. Yet, our history of water use is replete with examples of water use that have regarded the resource as boundless. Ground water depletion has been, and in some cases continues to be, a major problem. The idea of âwater miningâ regards water as a resource to be used until exhausted, and ignores renewal entirely.