oil-source bed
121Trickling filter — A trickling filter consists of a fixed bed of rocks, gravel, slag, polyurethane foam, sphagnum peat moss, or plastic media over which sewage or other wastewater flows downward and causes a layer or film of microbial slime to grow, covering the… …
122Fred Meissner — Fred F. Meissner, PE (10 November 1931 – 18 September 2007) was an American Geologist and Engineer who contributed to the fields of Geology, Geophysics, Engineering, Petroleum Engineering, Geochemistry, Mineralogy, Physics, Mining, Economic… …
123History of Venezuela — Infobox Country native name = República Bolivariana de Venezuela conventional long name = Bolivarian Republic of Venezuela common name = Venezuela official languages = Spanish demonym = Venezuelan capital = Caracas latd=10 |latm=30 |latNS=N… …
124Health and Disease — ▪ 2009 Introduction Food and Drug Safety. In 2008 the contamination of infant formula and related dairy products with melamine in China led to widespread health problems in children, including urinary problems and possible renal tube… …
125endocrine system, human — ▪ anatomy Introduction group of ductless glands (gland) that regulate body processes by secreting chemical substances called hormones (hormone). Hormones act on nearby tissues or are carried in the bloodstream to act on specific target organs… …
127Columbia River — Coordinates: 46°14′39″N 124°3′29″W / 46.24417°N 124.05806°W / 46.24417; 124.05806 …
128Reflection seismology — (or seismic reflection) is a method of exploration geophysics that uses the principles of seismology to estimate the properties of the Earth s subsurface from reflected seismic waves. The method requires a controlled seismic source of energy,… …
