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.
Natural resources are those resources that occur within the environment in their original and natural form, undisturbed by humanity. They take years to form without the intervention of humans. The Mother Earth is abundant with natural resources that develop on this planet using its surrounding environment. These natural resources are derived from the environment. While few of them are used for our survival like water, air, rest of them like coal, gas, oil are used for satisfying our daily needs. From forests to mountains to minerals to coastal shores and wetlands, each of these natural resource has its own importance.