biofuels, non renewable energy, trends in energy resources

what are biofuels made from

plants and waste

Are biofuels renewable or non-renewable

renewable and can be a solid, liquid or gas

what can biofuels be used for

burns for electricity or run in cars like fossil fuels

why is there a debate to see if biofuels are carbon neutral

to see if we should still grow plants at the rate that your burning things

why are biofuels reliable

crops take a short time to grow, some crops grow all year round

disadvantage of biofuels

cant respond to immediate energy demands, cost is high, release co2 when cutting down trees

how is the problem, bio fuels cant respond to energy demands, being fixed

biofuels are continuously producedand stored when they are needed

why are people worried that biofuel costs are high

growing crops for biofuels will mean that there isnt enough space or water to meet the demands for growing food crops

why are non renewables reliable

enough to meet demand, extracted from earth at a fast rate

disadvantage of non renewable energy

unsustainable, pollutes environment, slowly running out

what does buring coal and oil do to the enviroment

releases sulfer dioxide, causes acid rain, harmful to trees and soil, dangerous effects in ecosystems

how can acid rain be reduced

taking sulfur out before fuel is burned or clean up the emissions

how does coal mining effect the enviroment

messes up landscape

how does oil spillages harm the enviroment

affect mammals and birds that live near or in the sea

problems with nuclear power

nuclear waste is dangerous, difficult to dispose of, expensive

advantage of nuclear fuel

cheap

why is nuclear power dangerous

risk of major catastophe, fukushima in japan

why do people want to use for renewable resources

not as harmful to enviroment, government realise that non renewables are running out, pressure from other countries

how have car companies been affected by people wanting to use more renewable resources

making their cars and products more enviromentaly friendly, electric and hybrid cars

why is the use of renewables limited

reliability, money, politics

problems with renewables

harm habitats, cause visual and noise pollution, cost more, not lots of scientific evidence