Answer: recycles

AnswerCrossword Clue
RECYCLESConserves materials, in a way
RECYCLESHelps the environment, in a way
RECYCLESPuts to new uses
recyclesReturn (material) to a previous stage in a cyclic process
recyclesConvert (waste) into reusable material
recyclesUse again
recyclesRECYCLE, to process waste materials