stream channel erosion
121Meander — /mee an deuhr/, n. ancient name of the Menderes. * * * Extreme U bend in a stream, usually occurring in a series, that is caused by flow characteristics of the water. Meanders form in stream deposited sediments and may stack up upstream of an… …
122Waterfall — For other uses, see Waterfall (disambiguation). Angel Falls in Venezuela is the world s tallest waterfall at 979;m (3,212 ft) …
123Lotic ecosystems — are the ecosystems of rivers, streams and springs. Included in these environments are the biotic interactions (amongst plants, animals and micro organisms) together with the abiotic interactions (physical and chemical). [Angelier (2003)] Lotic… …
124Leonard Harrison State Park — Geobox Protected Area name = Leonard Harrison State Park native name = other name = other name1 = category local = Pennsylvania State Park category iucn = III image size = 300 image caption = View north of Pine Creek Gorge, Pine Creek, and the… …
125Antarctica — /ant ahrk ti keuh, ahr ti /, n. the continent surrounding the South Pole: almost entirely covered by an ice sheet. ab. 5,000,000 sq. mi. (12,950,000 sq. km). Also called Antarctic Continent. * * * Antarctica Introduction Antarctica Background:… …
126Amazon River — Portuguese Rio Amazonas River, northern South America. It is the largest river in the world in volume and area of drainage basin, and only the Nile River of northeastern Africa exceeds it in length. It originates within 100 mi (160 km) of the… …
127Coral reef — Marine habitats Biodiversity of a coral reef Lit …
128Atlantic Ocean — an ocean bounded by North America and South America in the Western Hemisphere and by Europe and Africa in the Eastern Hemisphere. ab. 31,530,000 sq. mi. (81,663,000 sq. km); with connecting seas ab. 41,000,000 sq. mi. (106,100,000 sq. km);… …
