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      Question

      Photosynthetically Active Radiation (PAR) is the portion

      of the light spectrum accessible for photosynthesis in green plants. What is the range of spectrum of light in terms of PAR?
      A 200 – 400 nm Correct Answer Incorrect Answer
      B 400 – 700 nm Correct Answer Incorrect Answer
      C 750 – 900 nm Correct Answer Incorrect Answer
      D 800 – 1000 nm Correct Answer Incorrect Answer

      Solution

      The correct answer is B

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