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The first principle of green chemistry holds that it is better to

  • A.dilute waste before discharge than to prevent it
  • B.prevent waste than to treat or clean it up
  • C.treat waste thoroughly than to prevent it
  • D.store waste safely than to prevent it

Answer: B

Correct answer: prevent waste than to treat or clean it up

The first of the twelve principles establishes the whole approach. Waste that is never made needs no treatment, no storage, no transport and no disposal, and it carries no residual liability. Every treatment, however good, leaves something and costs something, so prevention is preferable wherever it is achievable.

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