Please enable JavaScript.

Coggle requires JavaScript to display documents.

science - Coggle Diagram

- - - - Crude oil, the raw material used in the production of plastics, does not need to be extracted. This, in turn, avoids high energy cost processes such as fractional distillation and cracking.
        
        The amount of greenhouse gases would reduce as the energy cost of recycling is a lot less
  - - - Some materials, such as metals, can be difficult to sort; the amount of sorting is dependent on the purity of the materials or metals and the level of purity required for the final product.
        
        Steel that is used in the construction industry does not require such high purity. Often scrap iron is added to the furnace when steel is made.