The presence of harmful substances in the environment. - Pollution, To process used materials so they can be used again. - Recycle, Unwanted materials or things that are no longer needed. - Waste or Garbage, To keep someone or something safe from harm or damage. - Protect, Power from sources like electricity, the sun, wind, or fuel. - Energy, The general weather conditions in a particular area over a long time. - Climate, Which energy sources are not renewable? : Solar Energy,Wind Energy,Coal,Hydropower,Oil,Natural Gas - Coal, Oil, Natural Gas,

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