Lake – a mass of water or other liquid of considerable size, situated on the land. The large number of lakes on Earth is freshwater, and most lie in the Northern hemisphere at higher latitudes. In the ecology of the surrounding lake environment is referred to as lacustrine deposits. Large lakes are sometimes referred to as “inland seas” and small seas are sometimes referred to as lakes. Small lakes tend to put the word “lake” after the name, as in Green Lake, while larger lakes often invert the word order, as in Lake Ontario, at least in North America.
Most lakes have a natural outflow in the form of a river or stream, but some have not, and lose water solely by evaporation and/or underground leakage. They are called internal lakes.
The term “lake” is also used to describe such a feature as lake Eyre, which is a dry basin most of the time, but can be filled with seasonal heavy rains.
Many lakes are artificial and constructed for hydro-electric power, regional purposes, industrial use, agricultural use or domestic water supply.
Evidence of extraterrestrial lakes exists. The testimony of lakes filled with methane, was approved by NASA to return the automatic research station “Cassini” – observing satellite Titan, which moves around the planet Saturn.
The origin Continue reading
Savannah — the sea of grasses with occasional Islands of trees with the canopy of the umbrella. Vast areas of these amazing natural communities are in Africa, while the savanna in South America, and Australia, and India. A distinctive feature of the savannas is the alternation of arid and wet seasons that lasts for about half a year, one after another. The fact that subtropical and tropical latitudes, where there are savannas, characterized by the change of two different air masses humid Equatorial and tropical dry.
Significantly influence the climate of savannas monsoon winds that bring seasonal rains. Because these landscapes are located between the very humid Equatorial areas with natural forests and very dry areas of deserts, we are constantly influenced by those and others – approx. But the moisture is present long enough in the savannas, there grew tiered forest and dry “winter” in 2-3 months do not allow Savannah to become a harsh desert.
The annual rhythm of life of the Savannah is associated with climatic conditions. During wet periods a riot of grass vegetation reaches a maximum — the space occupied by savannas, turning into a living carpet of herbs. The picture was broken only by the low, gnarled trees — acacia and baobab trees in Africa, fan palm, ravenala in Madagascar, cacti Continue reading
What traveler has not wanted to see the second largest freshwater lake in the world and the largest lake in Africa, the Northern coast which crosses the equator. Lake Victoria was discovered in 1858 by an English traveller and African Explorer John Henning Speke. The lake area is 68 thousand sq. km, length – 320 km, the maximum width is 275 km and the maximum depth, accounting for 80 m, Victoria can be considered one of the deepest lakes in the world. After the construction in 1954 of a dam at Owen falls on the Victoria Nile, the lake turned into a reservoir, causing the water level rose by 3 m.
The many Islands scattered around the lake, becomes a safe haven for numerous birds. In the lake high-water river Kagera, it follows the Victoria Nile. Victoria fills a shallow depression between the Eastern and Western sides of the valley of the Great African valley, getting a huge amount of water from rainfall – more than from all their tributaries.
Around the lake is home to nearly 30 million natives. On the southern and Western shores of the lives of the people of vahia who knew how to grow coffee long before the arrival of Europeans. Victoria main ports: Entebbe (Uganda), Mwanza, Bukoba (Tanzania), Kisumu (Kenya), near the Northern coast and Kampala, capital of Uganda.
The waters of the lake found a huge amount of crocodiles. Victoria is a habitat of a fossil Continue reading