1) the introduction of harmful substances or products into the environment. a) Recycle b) Compost c) Pollution 2) An object or substance capable of being decomposed by bacteria or other living organisms and thereby avoiding pollution. a) Recycle b) Bio-degradable c) Compost 3) convert (waste) into usable material. a) Eco-friendly b) Recycle c) Pollution 4) a mixture of various decaying substances, as dead leaves or dung, used for fertilizing soil. a) Compost b) Recycle c) Pollution 5) Things that are not harmful to the environment. a) Pollution b) Eco-friendly c) Plastic

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