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Title: GCSE notes for grade 9-1
Description: these notes will definitely help you with your stressful GCSE studying, plus they are all done for you so you can just revise, revise, revise!!
Description: these notes will definitely help you with your stressful GCSE studying, plus they are all done for you so you can just revise, revise, revise!!
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Form without human input
...
Some natural products can be replaced by synthetic products or improved upon by man-made processed
...
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Finite resources aren’t formed quickly enough to be considered replaceable
...
Minerals and metals
found in ores in Earth are non-renewable materials
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The table shows information for two resources, coal and timber
...
Energy Density (MJ/m3 )
Resource 1
Resource 2
7600-11400
23000-26000
Time it takes
to form
10 years
10 years
6
Modern materials are made from raw, finite resources
...
Mining metal ores is good because useful products can be made
...
Mining ores is bad for environments as uses lots of energy, scars landscape,
produces lots of waste and destroys habitats
Title: GCSE notes for grade 9-1
Description: these notes will definitely help you with your stressful GCSE studying, plus they are all done for you so you can just revise, revise, revise!!
Description: these notes will definitely help you with your stressful GCSE studying, plus they are all done for you so you can just revise, revise, revise!!