Where does the Water of RIVERS and LAKES come from? and how it is renewable as it never ends?
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Well, the water in lakes comes from rivers. And the water in rivers comes from rain. The rain water slowly seeps through the ground and towards the valley where it trickles into the river. Sometimes, the water is in snow and doesn't go into the river until it melts.\n\nNever ends? Well, as long as it keeps raining, it will not end. But many times, in droughts the smaller springs and creeks will actually dry up. If the drought is sever enough, then the lakes dry up too. Mind you, only small lakes will. It is unlikely that Lake Erie will ever dry up.
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Rivers & streams are parts of drainage basins (aka watersheds). This means that they drain most of the surface water from an area.\n\nWhen it rains very heavily, it runs off & goes into the rivers & streams b/c they are lower in elevation. This is called surface runoff.\n\nRivers are only capable of handling a certain amount of water at a time. When it reaches flood stage it will overflow it's banks.\n\nAlthough it is possible for a lake to flood, more than likely it will not. It is less likely to get all the surface runoff from the surrounding area.\n\nOceans are not going to flood unless sea level rises. There is no real "normal" flood stage for oceans. Over time they transgress & regress in response to climate change. Water is constantly being evaporated from the oceans as well.\n\nMost of our precipitation comes from water vapor that was evaporated from the oceans. This is simply b/c oceans cover the majority of the planet.\n\nHope this helps.
251822
hydro = water\nso \nelectic enery from water.\nlook up Hover Dam
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The water cycle — technically known as the hydrologic cycle — is the continuous circulation of water within the Earth's hydrosphere, and is driven by solar radiation. This includes the atmosphere, land, surface water and groundwater. As water moves through the cycle, it changes state between liquid, solid, and gas phases. Water moves from compartment to compartment, such as from river to ocean, by the physical processes of evaporation, precipitation, infiltration, runoff, and subsurface flow. Movement of water within the water cycle is the subject of the field of hydrology.
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wat r trivers? and u can learn about rivers in history. i have a REALLY good social studies teacher who told me that geo and history and very closely related. we learned bout the st lawerence river in history class!\n\nand bout the yangtze river...\nThe Yangtze River is the longest river in Asia and third longest in the world. The headwaters of the Yangtze are situated at an elevation of about 16,000 feet in the Kunlun Mountains in the southwestern section of Qinghai. It flows generally south through Sichuan into Yuanan then northeast and east across central China through Sichuan, Hubei, Auhui, and Juangsu provinces to its mouth, 3,720 miles, in the East China Sea north of Shanghai. The river has over 700 tributaries but the principal tributaries are the Hun, Yalong, Jialing, Min, Tuo Jiang, and Wu Jiang. The climate ranges from 96 degrees in the summer to cold, brisk temperatures in the winter. Precipitation is high due to the height of the mountains.  \nChina covers an area of almost 3.7 million square miles and is the most populous country on earth having more than one billion people. The bordering countries include Mongolia, Kazakhstan, India, Nepal, Burma, Vietnam and Korea. The People's Republic is led by Chinese Communist Party and governed by the State Council. The main language spoken is the Mandarin dialect of Chinese but there are more than 150 languages and dialects spoken throughout the country. Approximately 350 million people inhabit the region of the Yangtze. There is plenty of wildlife along the river as well which include the Tibetan antelopes, Mongolian gazelles, and snow leopards, just to name a few.  \n\nWaters of the Yangtze are often used for rice and wheat irrigation. It also has enormous and inexhaustible hydroelectric resources. In 1995 construction began on the Three Gorges Dam near Yichang and is scheduled for completion in 2009. The dam will measure about 600 feet and about 1.5 miles wide. The dam is expected to help control the flooding of the Yangtze River Valley. The Three Gorges (the Qutang Gorge, the Wuxia Gorge, and Xiling Gorge) will also be the largest electricity generating facility in the world. The hydroelectric generators will provide 1/9 of China's total power output. \n\nThere is a lot of controversy surrounding the construction of the dams. There are 140 villages, 1,600 factories and over 80,000 acres of growable land that will be destroyed. It may also cause animals to become extinct. The area is very prone to earthquakes because it lies directly on a fault line. Actually, the plateau and gorges were created by collision of the Indian-Australian plate, drifting northward, with the Eurasian plate that began over 40 million years ago and continues today. \n\n\n\n\n\n\n      Snaking its way 6,300 kilometres from western China’s Qinghai-Tibet Plateau to the East China Sea, the Yangtze River stretches nine provinces and serves as a drain for 695,000 square miles of land.  It is less in length only to the Amazon and Nile, and spans so many regions that it has acquired half a dozen names.  In the high Qinghai-Tibet Plateau, the Tibetans title it Dri Chu—Female Yak River.  The Chinese in the area know it as Tongtian He, Travelling-Through-the-Heavens River.  Where it borders Sichuan and runs through Yunnan, it is referred to as Jinsha Jiang, River of Golden Sand.  Often the word Wanli prefixes the common Chang Jiang (Long River), designating it Ten Thousand Li River. Only in the lower reaches does this great flood go by its name common to foreigners: Yangtze. \n\n        For over two centuries the Yangzte has served as a transportation highway and commercial thoroughfare.  Ocean-going vessels can navigate up the river for 1000 km and steamers can travel as far as Yichang, 1600 km from the sea.  A quarter of China’s ocean-going cargo enters the river between Shanghai and the sea.  Shanghai is known as the gateway to the Yangzte, spanning the Huangpu tributary just south of the
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The quantity and quality of a resource is determined by whether it is a renewable, non-renewable, or a flow resource. \n\nRenewable resources, such as plants and animals, can replenish themselves after they have been used if their physical environment has not been destroyed. If trees are harvested carefully, a new forest will grow to replace the one that was cut. If animals eat grass in a pasture to a certain level, grass will grow again and provide food for animals in the future, as long as the carrying capacity of the land is not exceeded by the pressure of too many animals. \n\nNonrenewable resources, such as minerals and fossil fuels (coal, oil, and natural gas), can be extracted and used only once. \n\nFlow resources, such as water, wind, and sunlight, are neither renewable nor nonrenewable because they must be used as, when, and where they occur. The energy in a river can be used to generate electricity, which can be transmitted over great distances. However, that energy must be captured by turbines as the water flows past or it will be lost.
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It is renewable since warmth from the sun generates new wind all the time.\n\nThis is the opposite of oil.  Oil takes so long to produce that we use it up much faster than it is created in the earth.  We can actually use up all the oil.
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The basic answer to that is:\nAs water falls on land and runs into the oceans it picks up minerals.\nWhen it gets to the ocean the minerals get mixed into the ocean water.\nSunlight causes the water to evaporate but leaves the minerals behind.\nThe water then falls on land again repeating the process.\nEventually the salt content in the oceans built up to where it is today. And continues to build up.
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"Renewable energy (sources) or RES capture their energy from existing flows of energy, from on-going natural processes, such as sunshine, wind, flowing water, biological processes, and geothermal heat flows. The most common definition is that renewable energy is from an energy resource that is replaced rapidly by a natural process such as power generated from the sun or from the wind.\n\nMost renewable forms of energy, other than geothermal and tidal power, ultimately come from the sun. Some forms are stored solar energy such as rainfall and wind power which are considered short-term solar-energy storage, whereas the energy in biomass is accumulated over a period of months, as in straw, or through many years as in wood. Capturing renewable energy by plants, animals and humans does not permanently deplete the resource. Fossil fuels, while theoretically renewable on a very long time-scale, are exploited at rates that may deplete these resources in the near future (see: Hubbert peak).\n\nRenewable energy resources may be used directly, or used to create other more convenient forms of energy. Examples of direct use are solar ovens, geothermal heating, and water- and windmills. Examples of indirect use which require energy harvesting are electricity generation through wind turbines or photovoltaic cells (PV cells), or production of fuels such as ethanol from biomass (see alcohol as a fuel). A parameter sometimes used in renewable energy is the tonne of oil equivalent (toe). This is equal to 10,000 Mcal or 41,868 MJ of energy.[1]\n\nIn a sense, renewable energy may be categorised as free energy, although most renewable energy sources would not normally be called "free energy". In engineering, free energy means an energy source available directly from the greater environment and which cannot be expected to be depletable by humans. Renewable energy development is concerned with the use of renewable energy sources by humans. For aspects of renewable energy use in modern societies see Renewable energy development. Modern interest in renewable energy development is linked to concerns about exhaustion of fossil fuels and environmental, social and political risks of extensive use of fossil fuels and nuclear energy. For a general discussion, see future energy development"
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The St. Lawerence Seaway connects Lake Ontario to the Ocean.  Technically Lake Erie is the only lake providing water to Niagara Falls since the Niagara River flows north.  Lakes Superior, Michigan, and Huron are connected and Huron connects to Lake Erie.  I believe that Superior is fed into by underground and river sources.\n\nApparently there is enough water in the Great Lakes to cover the contentail United States under 9.5 feet of water.\n\nThey add up to about 15 percent of the worlds total fresh water supply.  That alot of water.
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The main parts of a river include a channel, in which the water flows, and a floodplain—a flat region of a valley on either side of the channel. Through the channel and floodplain, water and sediment—material transported by the river, such as sand and silt—are transferred from ridges and mountains to the sea or to a lake. A river starts on hillsides as small channels, or rills. The rills combine to make larger channels or tributaries that eventually come together, forming distinct streams. The largest channels formed by this convergence of tributaries are rivers, and they can carry large quantities of fresh water and sediment across continents.
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As you know, the Earth is a watery place. Estimates vary, but somewhere between 70 and 75 percent of the Earth's surface is water-covered. But water also exists in the air as water vapor and in the ground as soil moisture and in aquifers. Thanks to the water cycle (view a graphic of the water cycle) our planet's water supply is constantly moving from one place to another and from one form to another. Things would get pretty stale without the water cycle!\n\nWhen you take a look at the water around you, you see water in streams, rivers, and lakes. You see water sitting on the surface of the earth. Naturally, this water is known as "surface water." Your view of the water cycle might be that rainfall fills up the rivers and lakes. But, how would you account for the flow in rivers after weeks without rain? In fact, how would you account for the water flowing down this driveway on a day when it didn't rain? The answer is that there is more to our water supply than just surface water, there is also plenty of water beneath our feet.\n\nEven though you may only notice water on the Earth's surface, there is much more water stored in the ground than there is on the surface. In fact, some of the water you see \n\nThere is about 323 billion gallons  of surface water and about 85 billion gallons  of ground water.
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In the context of your question,\n\nA resource is a source of material or energy that may be consumed, changed, or dispersed to the point it is no longer easily usable. Examples would be copper ore, oxygen in the atmosphere, helium gas taken from oil wells, water, sand, or even soil. Anything we do consumes or utilizes some sort of resource. Breathing uses oxygen from the air. Copper is used for wiring and piping. Helium is used for scientific research and birthday balloons. Sand is used to make concrete. Water is used for drinking, irrigation, and generating hydroelectric power. Soil is used for growing crops.  None of these are exhaustive lists, just examples. \n\nOil: Oil is a mixture of organic compounds extracted from the earth by drilling. It is created from organic materials deposited in sedimentary rock that are altered by heat, pressure, and biotic processes to create it. \nOil is used to make gasoline, diesel, airplane fuel, plastic, shampoo, rubber, antihistamines, and many other products. \n\nNatural gas: It is an organic gas that is also extracted from the earth by drilling. It is generated by a similar process to that for oil generation. It is used to heat homes, make fertilizer, and some plastics. \n\nWater: Water is found in many forms, but mostly as either fresh or saltwater. Fresh water is used for drinking, irrigation, etc. Saltwater is not as useful directly to man, but is an essential part of our environment as the oceans both support food supplies and have a large effect on the climate. \n\nWood: Wood comes from living organisms- trees. Wood can be used for building many things, including houses. It is used for fuel and is the primary source of fuel in some parts of the world.
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Typically, headwaters only experience recharge, but a local depression in the land surface can create a window into the groundwater, usually in the form of a lake or swamp.  Water here can flow downstream, and thus can add to discharge.
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As water flows in rivers, it picks up small amounts of mineral salts from the rocks, dried up remains of ancient salt seas and lakes and soil of the river beds. This very-slightly salty water flows into the oceans and seas. The water in the oceans only leaves by evaporating (and the freezing of polar ice), but the salt remains dissolved in the ocean - it does not evaporate. So the remaining water gets saltier and saltier as time passes.\n\nAnd please SEARCH before asking questions.
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It formed of dead bodies of plankton million years ago, found in certain rock formation called reservoir. Produced by drilling an oil well and gathered into surface facilities. Separated from its impurities (sediments and water), it transported mostly by pipeline to the refineries. The refineries extract the crude components at each weights to make various type of fuel such as gasoline, kerosene, diesel oil and so on. Crude oil composed by carbons and hydrogen that so called hydrocarbon. Hydrocarbons constitute a very large group including alkanes, alkenes, and alykynes.\nIt's non-renewable energy resources.
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A lot of the water came from the river in the first place. There is a net loss through plants, evaporation so I can't imagine why there is a problem of excess. sometimes the water is hotter so fish, plants have trouble.\nWhy if it is so clean, do plants get more river water instead of their "clean" water?