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Septic tank
A septic tank is part of a small scale sewage treatment system often referred to as a septic system, which consists of the tank itself and a septic drain ... > more -
Eutrophication
Eutrophication is the enrichment of an ecosystem with chemical nutrients, typically compounds containing nitrogen, phosphorus, or both. Eutrophication can be a natural process in lakes, occurring as ... > more -
1999 Izmit, Turkey Earthquake
The Izmit earthquake with a magnitude of 7.4 which lasted for 45 seconds killed over 17,000 in northwestern Turkey on 17 August ... > more -
Great Lakes
The Great Lakes are a group of five large lakes on or near the United States-Canadian border. They are the largest group of fresh water lakes on the earth and the Great Lakes-St. Lawrence system is ... > more -
Methyl tert-butyl ether
MTBE (methyl tertiary-butyl ether) is a chemical compound that is manufactured by the chemical reaction of methanol and isobutylene. MTBE is produced in very large quantities (more than 200,000 ... > more -
Infiltration (hydrology)
Infiltration is the process by which water on the ground surface enters the soil. Infiltration is governed by two forces, gravity, and capillary action. While smaller pores offer greater resistance ... > more
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