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.
Soil, water, air, minerals and plants are a few of the natural resources that make life possible on Earth. You and others use varying proportions of these resources in different ways daily. Because some natural resources are not obvious in items you use frequently, you might not know you're consuming those resources.