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Which one of the following acts as a decomposer?

  • A.Bacteria
  • B.Virus
  • C.Bread mould
  • D.Fungus

Answer: A

Correct answer: Bacteria

Bacteria are the principal decomposers, breaking down dead organic matter and returning nutrients to the soil. (Fungi and moulds do the same work, and are decomposers too - but bacteria are the answer the question is looking for, being the most numerous and the most versatile.)

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