What is 3r?
Identify which is 3r?

It increase to use the material on hand from disolving old material or waste and decrease the need of mining.
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Identify which is 3r?

Decrease the usage of material. Eg. electricity. Switch off lamp when go out.
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Identify which of 3r?
It is repeat to use the material or product as much as you can. Eg. Use 2 sides of a paper.
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