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  1. C

    What effects does Hexamethylene Diisocyanate have on the environment?

    Hexamethylene Diiosocyanate is also called HDI and its chemical formula is C8H12O2N2. It is damaging to the human body but I could not find anything about the effects on the environment.
  2. C

    Is it illegal to ride your bike and listen to your iPod?

    A friend told me this but i would like to know
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