Green Chemistry Crossword

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Across
  1. 3. how many principles does green chemistry have?
  2. 4. Who is the father of green chemistry?
  3. 5. seen as a promising technique for achieving green chemistry goals.
Down
  1. 1. Leave no waste to treat or clean up.
  2. 2. the design of chemical products that reduce the use or generation of hazardous substances.