(Encyclopedia) solid waste, discarded materials other than fluids. In the United States in 1996, nearly 210 million tons—about 4.3 lb. (2 kg) per person daily (up from 2.7 lb./1.2 kg in 1960)—were…
(Encyclopedia) hygiene, science of preserving and promoting the health of both the individual and the community. It has many aspects: personal hygiene (proper living habits, cleanliness of body and…
(Encyclopedia) Earth Day, Apr. 22, a day to celebrate the environment. The first Earth Day was organized in 1970 to promote the ideas of ecology, encourage respect for life on earth, and highlight…
LIMESTONEFIND OUT MOREMany cleaning products, such as soap and oven cleaner, are bases. Bases neutralize (cancel out) acids. Alkalis are bases that dissolve in water. Strong bases, such bleach,…
(Encyclopedia) Environmental Protection Agency (EPA), independent agency of the U.S. government, with headquarters in Washington, D.C. It was established in 1970 to reduce and control air and water…
(Encyclopedia) toxic waste is waste material, often in chemical form, that can cause death or injury to living creatures. It usually is the product of industry or commerce, but comes also from…
BOYCE, William Waters, a Representative from South Carolina; born in Charleston, S.C., October 24, 1818; attended South Carolina College (now the University of South Carolina) at Columbia and…
WATERS, Russell Judson, a Representative from California; born in Halifax, Windham County, Vt., June 6, 1843; moved with his parents to Franklin County, Mass., in 1846; attended the district…
Epidemic DysenteryWater-Borne Diseases: Cholera and DysenteryIntroductionCholera: Scourge of the PoorEpidemic Dysentery Dysentery is an inflammation of the intestine characterized by the frequent…
