Faculty of filology department of foreign languages and literature course work

Chronic Exposure: A continuous or repeated exposure to a hazardous substance over a long period of time.
Circle of Influence: The circular outer edge of a depression produced in the water table by the pumping of water from a well.
Clay: A sediment of soft plastic consistency composed primarily of fine-grained particles less than 1/256 of a millimeter.
Clay Soil: A soil containing more than 40 percent clay, but less than 45 percent sand, and less than 40 percent silt.
Clean Air Act (CAA): Federal law designed to control air pollution on a national level. It requires the EPA to develop and enforce regulations to protect the public from airborne contaminants known to be hazardous to human health.
Clean Water Act (CWA): Primary federal law governing water pollution. Its objective is to restore and maintain the chemical, physical, and biological integrity of the nation's waters by preventing point and nonpoint pollution sources, providing assistance to publicly owned treatment works for the improvement of wastewater treatment, and maintaining the integrity of wetlands.
Global Positioning System (GPS): A space-based satellite navigation system that provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites.
Good Neighbor Environmental Board (GNEB): Independent federal advisory committee with mission to advise U.S. government on good neighbor practices along the border with Mexico. Its recommendations are focused on environmental infrastructure needs within the U.S. states contiguous to Mexico.
Granular Activated Carbon (GAC): An effective absorbent primarily due to its extensive porosity and very large available surface area. By definition, granular activated carbon (as opposed to powdered activated carbon) is composed of particles with sizes greater than 0.8 mm, about the size of coarse sand. Activated carbon is manufactured from a variety of raw materials, including wood, coal, and coconut shells, making it plentiful, relatively inexpensive, and versatile.
Gray Water: Wastewater generated from kitchen sinks, washing machines, wash-hand basins, showers and baths, which can be recycled for landscape irrigation and constructed wetlands.
Green cleaning: Refers to the use of cleaning methods and products with environmentally friendly ingredients designed to preserve human health and environmental quality. Green cleaning techniques and products avoid the use of chemically reactive and toxic products which contain various toxic chemicals.