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The three Rs, the basic elements of a primary school curriculum: reading, 'riting (writing), and 'rithmetic (arithmetic) The three Rs, the waste management hierarchy: reduce, reuse, and recycle; The three Rs, consumer remedies under Australian Consumer Law when consumer guarantees of goods are not satisfied: refund, replace, and repair
The skills themselves are alluded to in St. Augustine's Confessions: Latin: ...legere et scribere et numerare discitur 'learning to read, and write, and do arithmetic'. [3]
All products and services have environmental impacts, from the extraction of raw materials for production to manufacture, distribution, use and disposal. Following the waste hierarchy will generally lead to the most resource-efficient and environmentally sound choice but in some cases refining decisions within the hierarchy or departing from it can lead to better environmental outcomes.
Local scientists, engineers and operations professionals are developing new approaches to the three Rs to make the world a better place — not just on Earth Day, but every day.
A common concept in Recycling is the 3Rs, which represent Reduce, Reuse, and Recycle. According to The Upcycle Artist's Handbook: A Comprehensive Guide to Creating Art from Waste published by Upcycle Art And Craft Society (UAACS). [8] They coined a 3Rs principle for upcycling: Rethink, Reform, and Reborn.
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Downcycling is the reuse of materials into lesser products. For example, a plastic computer case could be downcycled into a plastic cup, which then becomes a park bench, etc.; this eventually leads to plastic waste. In conventional understanding, this is no different from recycling that produces a supply of the same product or material.
Reuse is the action or practice of using an item, whether for its original purpose (conventional reuse) or to fulfill a different function (creative reuse or repurposing). It should be distinguished from recycling , which is the breaking down of used items to make raw materials for the manufacture of new products.
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