Dams

14 years or 12 years, best if you choose 13 years

They should be built because they can be a source of renewable energy

The Aswan high Dam is a controversial dam created by Egypt with assistance of the Soviet Union. It is one of the world's largest embankment dams, holding nearly 5 times more water than the Hoover Dam. It was built to control the natural flooding of the Nile, which was unpredictable and could cause destruction whenever it flooded too high and drought when it flooded too low. The other reason the Aswan Dam was built was to generate electricity for Egyptian farmers(when the dam was first built it generated 50% of Egypt's electricity, about 15% in 1998).

Unexpected benefits from the dam occurred including a new fishing industry and more convenient navigation as well as increased tourism. Because of reputed sightings of abnormally large Nile perch , big game fishing has become a new source of tourism.

However, many expected and unexpected drawbacks occurred as well. They are mostly social and environmental. Various Egyptian artifacts were submerged, some of which were relocated but most destroyed. The rising water level also submerged the homes of 50,000 Egyptian Nubians and 50,000 to 70,000 Sudanese Nubians (Lake Nasser is the largest manmade lake in the world. The Aswan Dam also assisted in the spread of the disease Schistosomiasis caused by the mass breeding of freshwater snails carrying the parasite Bilharzias as a result of the water level increase of Lake Nasser. The snails would have originally been flushed away by the Nile, but the Aswan dam 'clogged' up the flow. Egyptian cultural perceptions of the Nile including how miraculous it was that it flooded were also destroyed because humans could control the flow.

The loss of silt in the Nile riverbanks caused by the Aswan Dam has led to a overflow of silt in Lake Nasser which has become a problem but a reduction of sediment in the Nile that have traditionally served the role as fertilizer. This has led to the introduction of chemical fertilizers, which are less effective but more costly and less environmentally than the nutrients the sediment provided. The loss of sediment in the river has also led to the reduction of fish in the Nile. The chemical fertilizers are also dangerous to health. The loss of naturally occurring sediment has also led to the destruction of 1,000 square kilometers of land as a result of the brick construction industry which was forced to use up the old alluvium of arable land. About 50% of Egypt's farmland is rated medium to poor, a stark contrast to the extremely fertile land before. Because of the loss of silt in the Nile, the farmland of Egypt is degrading to a low quality.

The large amount of water in Lake Nasser has also led to the evaporation of its water. About 11% of the water in Lake Nasser is lost to evaporation each year. The slow flow of water in the Nile has led to the increase of weeds and algae that clogged up waterways and lowered the quality of the the water.

River bed erosion was predicted to be a major problem but it has not been so.

hydro electronic river dam that spans Yangtze river

Their are many different dams across the world. A few dams that are famous are The Hoover Dam located in the United States and The Karun Damn in Iran

of course not ! dams need water as the energy to create electricity. Basically water is fuel to create electricity in dams and without it, it is impossible if there isn't any other form of fuel energy provided to dams ...

Most dams are 80,90 or even 100 yards.

the main impact is land slides causing animals and people to lose homes

Main disputes is over two dams with India from Pakistan

it is the egyptian dam and it is located in aswan at the south of egypt.

I think its BANAS river is the longest in Rajasthan.

polders

There are 100 decimeters in one dekameter.

what is freshwater reservoirs?

The company that built it was - Impressit of Italy.

Tennessee Valley Authority

Check chances

Chang

Chris

Fghcf

huge power generators are placed inside dams. Water flowing through the dams spin turbine blades (made out of metal instead of leaves) which are connected to generators. Power is produced and is sent to homes and businesses.

umm hey ima doin homework ......aka DAMS OF THE WORLD .......:) idk gonna checck some were else sweetie ...... bby girl:) or bby boy:0 lubb yeww

4,000GWh

that's

4,000,000,000kWh

kinetic energy

Levees prevent rivers from flooding their banks as often

The purpose of the 3 gorges dams are to establish a modern way of living, or atleast to help. the 3 gorges dam was an idea that was invented in 1909 and was approved on 1992 and finished 2009.

When people build a dam, there would be a side with alot of water, and the other side would have very little amout of water. So the tribal people would not get alot of water then they had before. They would have little amount of water to drink and water to wash things like there clouths. Also they would lose a big amount of food, fish. They wouldn't have fish to catch anymore. That's what dams cause to tribal people.

It was like $20 a week I think. It was a lot for that time period.