Search results
Results from the WOW.Com Content Network
The "flow regime" of a river or stream includes the general patterns of discharge over annual or decadal time scales, and may capture seasonal changes in flow. [7] [8] While water flow is strongly determined by slope, flowing waters can alter the general shape or direction of the stream bed, a characteristic also known as geomorphology. The ...
The list of drainage basins by area identifies basins (also known as "catchments" or, in North American usage, "watersheds"), sorted by area, which drain to oceans, mediterranean seas, rivers, lakes and other water bodies.
Three—the Milk River, the Red River of the North, and the Saint Lawrence River—begin in the United States and flow into Canada; two do the opposite (Yukon and Columbia). Also a segment of the Saint Lawrence River forms the international border between part of the province of Ontario , Canada, and the U.S. state of New York .
Of North American freshwater species, an estimated 48.5% of mussels, 22.8% of gastropods, 32.7% of crayfishes, 25.9% of amphibians, and 21.2% of fish are either endangered or threatened. [24] Extinction rates of many species may increase severely into the next century because of invasive species, loss of keystone species, and species which are ...
List of drainage basins by area (including rivers, lakes, and endorheic basins) List of largest unfragmented rivers; List of longest undammed rivers; List of river name etymologies; List of rivers by age; List of rivers by discharge; List of rivers by length; List of rivers of Central America and the Caribbean; List of rivers of the Americas
The steep grades and variable flows of most other West Coast rivers make them unsuitable for large boat travel. Also, most large rivers there are dammed, often in multiple places, to supply water for hydroelectricity production and other uses. Mountainous terrain and a shortage of water make canals in the West infeasible as well.
Earth Learning Idea (ELI) provides free Earth-related teaching ideas, designed to be practical science and geography resources for secondary and primary teachers and teacher-trainers and trainees across the world. It is run on a voluntary basis by three teachers from the Earth Science Education Unit (ESEU).
25 mi (40 km) longest river in Trinidad and Tobago [22] Cauto River: Cuba: 230 mi (370 km) longest river in Cuba and the Caribbean/West Indies [23] Chavón River: Dominican Republic: historically used by pirates to hide treasure Colonarie River: Saint Vincent and the Grenadines: 5 mi (8.0 km) longest river in Saint Vincent and the Grenadines ...