Download presentation
Presentation is loading. Please wait.
Published bySherilyn Richard Modified over 6 years ago
1
L.O: explain the usefulness of recycling and sustainability of metals
Life cycle of metals L.O: explain the usefulness of recycling and sustainability of metals
2
Learning outcomes.. Give examples of the impact of our use of metals on the environment Explain how recycling of metals can bring both economic and environmental benefits
3
Mining Vast volumes of waste rock
Large holes in ground – risk of mine collapsing Ruins landscape Use explosives – noisy and produces dust Transport costs/pollution What are the benefits?
4
Use Product has to be made from raw material Energy costs/water costs
Other raw materials may be needed Only a finite amount in the earth Running out of fossil fuels (climate change, acid rain, global dimming)
5
Disposal Landfill – uses up land, toxic chemicals produced that pollute surroundings Burning – releases toxic chemicals Transport costs to get rubbish to site
6
Recycling Uses only a fraction of the energy needed to mine and extract new metal Saves money Conserves resources Slows down filling up of landfill/prevents burning of rubbish E.g. Aluminium recycling saves 95% energy costs and every1kg saves 4kg of Aluminium ore
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.