Biology, asked by prasannaramji78, 1 year ago

4r and its principals ​

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Answered by sakshi863
2

The 4Rs - reduction, reuse, recycling and recovery. ... A number of waste prevention techniques are available, and they are commonly summarized as the so-called 4Rs: reduction, reuse, recycling and recovery. Reduction, reuse and recycling are known in the industry as the 3Rs.

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