Energy sources control dam between the lake and the river And in the one outlet of the dam they build a turbine This turbine activates a generator and the water What is anenergy energy-source, is transformed which into kinds electric of energy energy are there Moreand information why are energy about sources soalternative important?energy At thiscan place be you found learn in the about article sources aboutof energy green energy What are the pros and cons of different sources of energy? The three • What different are kinds sources of of energy-sources energy and where have are theirthey ownused prosfor? and cons In this part we • give Which a fewdifferent of them.sources of energy we know? • What arepower Nuclear the pros and cons of different sources of energy? For the generation of nuclear power little raw material is needed to What aregenerate sources aoflot energy of electric and where energy.are This they is an used advantage, for? because the supply An energyofsource the raw is amaterial system will which be makes enoughenergy for quite in aacertain time Away, veryfor biginstance a hydro-electric disadvantage station Aishydro-electric that the raw material station uses for nuclear the current power, of the uranium, river for is very the making ofradio-active electricity Also the used rods en other used materials stay radio-ac tive Nowadaysfor weages needatenergy-sources a nuclear power forplant electricity as Tsjernobyl Withoutwe electricity have seen nohow computers,dangerous no television, this type no washers of energy-generation A lot of apparatus can be would Thisnot is the work major without reason electricity.why environmental groups (like Greenpeace) are against this form of energy-winning Which different sources of energy we know? How •manyFossil energy-sources energy we know, below are the most important sources • Nuclear The big advantage power of fossil energy is that, to generate the energy from the Nuclear raw material power is is easy a form and cheap of energy Disadvantage which ariseisfrom that aduring reaction thebetween process of atomic nucleï combustion a lot Mostly of toxic thismaterials form of energy comes comes into theout airof which nuclear causes fis sion extraTo explain how pollution of the thisatmos process phere, works, these wematerials give a little alsoexplanation increase theabout effecttheof structure global warming of atomic nucleï Another Atomic disadvantage nucleï excist of fossil out ofenergy neutrons is that andthe supply of protons fossil fuels these is not little endless parts (neutrons The current andsupply protons) is for areapproximately held together in50the center That years of theisatomic why the nucleus USA wants through to atrail special for oil energy, and natural calledgas bindingin Alaska energy If the USA I n adoproces this, there s in which are bigthe consequences atomic nucleï forcollide the environment whith eachother, For they fall more information apart and about the loose this parts subject, come go out to the of article the atomic about nucleus The exhaustion energy which kept the parts together is not nessecary anymore and this • energy comesenergy Alternative 'free' At the technique of nuclear fission, atomic nucleï collide The advantage with eachother of alternative in a central energy boiler is that to the become energy as source much energy is endless out of it as doesn't and possible give The any so pollution called 'binding-energy' Still, there arefalls not many apart and alternative this energy energy comes out forms, because of thefor atomic instance nucleus the technique This energy to transform is used for sun-beams heating up into water and this energy electric water becomes is very expensive steam Through For more the information steam a turbine about canalternative be driven and soof forms electricity energy-winning, is a fact go Thetospeed the article in which aboutthe atomic nucleï collide greenisenergy controlled by s pecial rods These rods can pull atomic nucleï towards them and so the there becomes less nucleï, which can collide and then there is less binding-energy to come 'free' • Fossil energy Fossil energy is generated through the burning of fossil remains At this burning the fossil fuel is used as a source of heat to make steam out of water This steam is used for the working of a turbine With the help of a generator, this turbine can m ake electricity Examples of fossil fuels are oil, natural gas and c oal These fossil fuels are remains of dead materials of plants and animals These plants and animals died over a million years ago and under the pressure of the earth's surface and through the decay of this material their came a process of compress ion Carbon is the main part of these fossile fuels, the more carbon, the heavier the fuel • Alternative energy Alternative energy a electric form ofdelivers energy without waste-matters Itand is these also ais form alternative forms used station for where of makes the alternative energy-sources the making use source, ofisenergy, of the which fallare excisting between sun-, energy wateraenergy the lake Forenergy, and instance, and (like windenergy a river water, is aendless hydro-electric They wind By Some build al sun) a flood