Recycling is the re-use of materials that would otherwise be considered waste. Those materials can be sources from pre-consumer waste (materials used in manufacturing) or post-consumer waste (materials discarded by the consumer).
Articles about, or including aspects of, recyling:
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... played rhythm guitar. Pigpen played keyboards, harmonica and, was an inspirational vocalist until his death in 1973. Both Bill and Mickey played drums, and a wide variety ...