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1. It is very expensive to build.
2. Natural habitats are destroyed for the building of the plants.
3.Large sources of water is needed.
4.The quality and the quanity of the water may be lowered.
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∙ 13y ago
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What are some sources of hydroelectric energy?
That would be water. Water from rivers being very popular with the hydroelectric dams. Storing its potential energy behind the dam.
What is a major concern with building new hydroelectric dams?
Some concerns are the strengtheners and what backs up the dam if it breaks.
Are hydroelectric dams harmful to the water?
Well, there's been some talk that the pressures generated as it goes through the turbines would be detrimental to plankton and stuff, but I don't think anything's been proven. The big thing about hydroelectric dams is that they are big, and they change the landscape quite a lot.
What are some things that where made in new zealand by humans?
Roads, railways, libraries, hydroelectric dams, milk processing factories, sheep farms.
What are some problems with the dams?
Sometimes dams slow the water down, and makes the water build up, causing floods.
What problems are caused by silt built up in dams?
A dam is a structure which controls the amount of water flowing. Silt build up is a type of problem many dams face. Silt is a type of sediment which builds up around the dam, as all water contains some form of silt or debris. Some problems caused by silt build up are erosion of dam parts, abrasion to dam materials, and damage to the dam turbines.
What are some sources of power that are not fossil fuels?
Wind, solar, water (as in hydroelectric dams), and Biofuel (corn-based ethanol) are major alternatives to fossil fuels.
Can hydroelectric power completely replace current methods?
Hydroelectric power is already one of the current methods and has been for well over 100 years. No it cannot completely replace other means of generating electricity. For one thing most western nations have already maxed out their usage of hydroelectric power and some have actually had to tear down some older dams due to environmental damage caused by the dam. Rivers that can be economically dammed to generate power are a very limited resource.
What are some physical features of the great valley?
there are two major dams on the Ganga. One at Haridwar diverts much of the Himalayan snowmelt into the Upper Ganges Canal. The other dam is a serious hydroelectric affair at Farakka. The dams were named according to the cities.
What are some disadvantges of hydroelectric energy?
Hydroelectric power is one of the most abundant and useful renewable sources of energy, but there are environmental impacts. A hydroelectric dam requires a reservoir of water behind it; the lake that is formed when the dam is put in place can flood otherwise useful land. Large dams also prevent fish from moving freely about the river, which can impact the ability of some species to spawn, such as salmon.
What are the problems caused due to wars?
Some problems caused by war is loss of life and economic crash.
What were some causes of Rome's economic problems?
one of the things that caused some of the economic problems would be they had a bad economy and it caused there empire to be overthrown
