Most of the world’s electricity is generated by either thermal or hydroelectric power plants. Thermal power plants use fuel to boil water which makes steam. The steam turns turbines that generate electricity. Hydroelectric power plants use the great force of rushing water from a dam or a waterfall to turn the turbines. The majority of thermal power plants burn fossil fuels because thermal power plants are cheaper to maintain and have to meet less …showed first 75 words of 1345 total…

…showed last 75 words of 1345 total…to be exposed to more than 300 rems, severe changes in blood cells and hemorrhage takes place. If someone were to receive more than 600 rems, symptoms would be hairloss, loss in your bodies ability to fight infection and usually results in death. (World Book vol. 16, 79) As you can see, the effects of radiation sickness is not too pleasant. The main reason for building a repository is to keep people and the environment safe from deadly radiation.