normal annual runoff
31Austin, Texas — Austin redirects here. For other uses, see Austin (disambiguation). City of Austin   City   Downtown skyline as seen from Lady Bird Lake …
32Johnson Creek (Willamette River) — Geobox | River name = Johnson Creek category = Creek image size = 300 image caption = Johnson Creek near Regner Road in Gresham etymology = William Johnson, early settler country = United States country state = Oregon district type = County… …
33Calendar of 2001 — ▪ 2002 January America has never been united by blood or birth or soil. We are bound by ideals that move us beyond our backgrounds, lift us above our interests and teach us what it means to be citizens. Every child must be taught these principles …
34Marine habitats — Coral reefs provide marine habitats for tube sponges, which in turn become marine habitats for fishes Littoral zone …
35Calendar of 1994 — ▪ 1995 JANUARY JANUARY 1 Mexican peasants revolt in Chiapas. A group of uniformed Mexican peasants, calling themselves the Zapatista National Liberation Army (EZLN), caught the government completely off guard when they attacked and captured …
36Marcellus Formation — Stratigraphic range: Middle Devonian …
37Retreat of glaciers since 1850 — The retreat of glaciers since 1850, worldwide and rapid, affects the availability of fresh water for irrigation and domestic use, mountain recreation, animals and plants that depend on glacier melt, and in the longer term, the level of the oceans …
38Health 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… …
39Chad Basin — The Chad Basin, also known as the Lake Chad Basin, is a large lowland area in north central Africa. In all directions from the center of this area the elevation changes are gentle. The Chad Basin is an endorheic (closed) basin its water does not… …
40United Kingdom — a kingdom in NW Europe, consisting of Great Britain and Northern Ireland: formerly comprising Great Britain and Ireland 1801 1922. 58,610,182; 94,242 sq. mi. (244,100 sq. km). Cap.: London. Abbr.: U.K. Official name, United Kingdom of Great… …
