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What do you mean by the ’4R principle’ to develop environment friendly habits?

User Drmariod
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2 Answers

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It means reduce reuse and recycle!
User Matzi
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6 votes

Answer:

We mean this by '4R principle'

  • Reduce
  • Reuse
  • Recucle

The question may be about ' 3R' principle....

User Jarcoal
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