c2 material choices

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  • C2 Material choices
    • Natural Materials
      • cotton
        • from a plant
      • paper
        • from wood
      • silk
        • from a silk worm
      • wool
        • from sheep
    • synthetic materials
      • plastic instead of wood
      • nylon instead of cotton
      • are produced by chemical synthesis
      • can be made as alternatives to natural materials
    • crude oil
      • is a thick, black, sticky liquid
      • contain mainly hydrocarbns
      • to produce fuels, lubricates and raw materials for chemical synthesis


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