c6- recycling materials
extracting raw materials
requires energy
can take up large amounts of energy
which comes from burning fossil fuels
fossil fuels
running out
its important to conserve them
burning them contributes to acid rain and climate change
only uses a small fraction of energy needed to extract and refine the material from scratch
energy doesnt come cheap, it saves money to
recycling
as there is a finite amount of many raw materials eg, metals on earth - recycling conserves these resources
recycling metals cut down on amount of rubbish that gets sent to landfill, landfill takes up space and pollutes surroundings
isnt an energy- free process
you need energy to reprocess materials into new forms
items will need sorting to separate out different materials
eg. glass will be needed to sort out into colours and plastics need to serparate to
weighing up wether recycling a material is better then just disposing it, requires you to compare how much energy is used for both processes
you want to go with the option of the lowest energy cost, think about consequences of adding materials to landfill, material youre reclying comes fromnon- renewable or renewable sources
you can only recycle materials a finite no. of time, recycled material has lower quality than the original one. has to be used differently, ( paper can only be recycled a few times before useless as made from toilet paper not high quality paper )