Your entry Resonance would be here
-- Search as Words
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Resource Recovery -- See Recycling (Waste, etc.) Here are entered works on the processing of waste paper, cans, bottles, etc. Works on reclaiming and reusing equipment, parts, structures, etc. are entered under Salvage (Waste, etc.) --subdivision Recycling under individual chemicals and groups of chemicals and individual materials and types of materials, e.g. Copper--Recycling; Metals--Recycling
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Resources Conservation Natural -- See Conservation of natural resources
--subdivision Conservation under individual natural resources, e.g. Natural gas--Conservation
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