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      Question

      Which organism is known to help reduce air

      pollution?
      A Fungi Correct Answer Incorrect Answer
      B Lichen Correct Answer Incorrect Answer
      C Virus Correct Answer Incorrect Answer
      D Bacteria Correct Answer Incorrect Answer

      Solution

      Lichens are composite organisms made up of fungi and algae or cyanobacteria in a mutualistic relationship. Lichens absorb pollutants like heavy metals, sulfur, and nitrogen compounds from the air, making them effective bio-indicators of air quality and useful in reducing pollution levels.

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