concentration boundary
121List of numbered roads in Middlesex County — This page lists all of the numbered county roads in Middlesex County, Ontario. Note: when London became a separated municipality and absorbed several nearby townships, the County Road designations for them disappeared, rendering them numberless.… …
122plate tectonics — plate tectonic, adj. Geol. a theory of global tectonics in which the lithosphere is divided into a number of crustal plates, each of which moves on the plastic asthenosphere more or less independently to collide with, slide under, or move past… …
123renal system — ▪ anatomy Introduction in humans (human body), organ system that includes the kidneys, where urine is produced, and the ureters, bladder, and urethra for the passage, storage, and voiding of urine. In many respects the human excretory, or… …
124AUSCHWITZ — (Oświęcim), Nazi Germany s largest concentration and extermination camp. The word Auschwitz has become a metaphor for the Holocaust in general, and the phrase after Auschwitz has come to signify the great historical rupture wrought by the murder… …
125Age of the Earth — This article is about scientific estimates of the age of the Earth. For religious and other non scientific estimates, see Dating Creation. Earth as seen from Apollo 17 The age of the Earth is 4.54 billion years (4.54 × 109 years ± 1%) …
126East End of London — The East End of London, known locally as the East End, is the area of London, England, east of the medieval walled City of London and north of the River Thames, although it is not defined by universally accepted formal boundaries. Use of the term …
127Chicxulub crater — Imaging from NASA s Shuttle Radar Topography Mission STS 99 reveals part of the 180 kilometer (112 mi) diameter ring of the crater; clustered around the crater s trough are numerous sinkholes, suggesting a prehistoric oceanic basin in… …
128Solar thermal energy — Solar thermal system for water heating in Santorini, Greece …
