Spring (hydrology)

A spring is a point of exit at which groundwater from an aquifer flows out on top of Earth’s crust (pedosphere) and becomes surface water. It is a component of the hydrosphere. Springs have long been important for humans as a source of fresh water, especially in arid regions which have relatively little annual rainfall. Springs are driven out onto the surface by various natural forces, such as gravity and hydrostatic

OMA

OMA or Oma may refer to: Contents   1Businesses 2Communication 3Engineering 4Entertainment 5Fictional characters 6Medicine 7Places 8Transportation 9Other uses Businesses Office for Metropolitan Architecture, architecture firm founded by Dutch architect Rem Koolhaas Oswalds Mill Audio (OMA), a lifestyle company manufacturing horn loudspeakers and high end audio equipment Communication OMA (time signal), a former Czech longwave call sign .oma, extension

Spawn (biology)

Spawn is the eggs and sperm released or deposited into water by aquatic animals. As a verb, to spawn refers to the process of releasing the eggs and sperm, and the act of both sexes is called spawning. Most aquatic animals, except for aquatic mammals and reptiles, reproduce through the process of spawning. Spawn consists of the reproductive cells (gametes) of many aquatic animals, some of which

Southern Africa

Southern Africa is the southernmost subregion of the African continent, south of the Congo and Tanzania. The physical location is the large part of Africa to the south of the extensive Congo River basin. Southern Africa is home to a number of river systems; the Zambezi River being the most prominent. The Zambezi flows from the northwest corner of Zambia and western Angola to the Indian Ocean on the coast of Mozambique. Along the way,

Snowpack

Snowpack forms from layers of snow that accumulate in geographic regions and high elevations where the climate includes cold weather for extended periods during the year. Snowpacks are an important water resource that feed streams and rivers as they melt. Therefore, snowpacks are both the drinking water source for many communities and a potential source of flooding (in

Slurry

A slurry is a mixture of denser solids suspended in liquid, usually water. The most common use of slurry is as a means of transporting solids or separating minerals, the liquid being a carrier that is pumped on a device such as a centrifugal pump. The size of solid particles may vary from 1 micrometre up to hundreds of millimetres. The

Sluice

Sluice (/slus/ SLOOS) is a word for a channel controlled at its head by a movable gate which is called a sluice gate. A sluice gate is traditionally a wood or metal barrier sliding in grooves that are set in the sides of the waterway and can be considered as a bottom opening in a wall. Sluice gates are one

Seine

The Seine (/seɪn, sɛn/ SAYN, SEN, French:  (listen)) is a 777-kilometre-long (483 mi) river in northern France. Its drainage basin is in the Paris Basin (a geological relative lowland) covering most of northern France. It rises at Source-Seine, 30 kilometres (19 mi) northwest of Dijon in northeastern France in the Langres plateau, flowing through Paris and into the English Channel at Le Havre (and Honfleur on the left bank). It is navigable by ocean-going vessels as far as Rouen, 120 kilometres (75 mi) from the sea. Over

River source

The headwaters of a river or stream is the farthest place in that river or stream from its estuary or downstream confluence with another river, as measured along the course of the river. It is also known as a river’s source. Contents   1Definition 2Characteristics 2.1Example 3Related usages 4See also 5References Definition A stone near Crissolo, Italy, inscribed: Here is born the Po The United States Geological Survey (USGS) states that

Sacred groves of India

Sacred groves of India are forest fragments of varying sizes, which are communally protected, and which usually have a significant religious connotation for the protecting community. Hunting and logging are usually strictly prohibited within these patches. Other forms of forest usage like honey collection and deadwood collection are sometimes allowed on a sustainable basis. NGOs work with local villagers to protect such groves.