See also. 1  Taxon, a population of organisms that a taxonomist adjudges to be a unit. 2  Philosophical language. 3  Classification (disambiguation) 4  Categorization, the process of dividing things into groups. 5  Ontology (information science), formal representation of knowledge as a set of concepts within a domain.
Recycling saves energy. Using recycled material when making plastics and paper uses less energy than producing them from virgin, new materials. Recycling reduces pollution.Recycling reduces the amount of waste put into landfills. Landfills are potentially hazardous due to the concentration of non-biodegradable items that slowly leach toxic chemicals into the surrounding garbage in the landfill.ecycling saves energy. Using recycled material when making plastics and paper uses less energy than producing them from virgin, new materials. Recycling reduces pollution.
Transcript of Environmental Impacts of Smelting. Emissions from older smelters emitted toxic oxides of metals causing arsenic poisoning, cadmium which is responsible for heart disease, and mercury which is responsible for nerve damage. The mining sector is known to be a major cause of pollution in the environment. Slag, as defined by Google is a stony waste matter separated from metals during the smelting or refining of ore. This slag is emitted into the air, causing pollution. The vast majority of pollution is caused from the air emissions from smelting. Some air pollutants include sulfur dioxide and nitrogen oxide.