Green Chemistry

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Across
  1. 3. total number of key principles
  2. 5. green chemistry initiators
  3. 6. reduces use of which substances
Down
  1. 1. safer ----- ( 4th key principle )
  2. 2. first key principle of green chemistry
  3. 4. also known as------- chemistry
  4. 7. we should ------ harmful chemical substances