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    Question

    What is the unit of Photosynthetically active

    radiation?
    A W māˆ’Ā² Correct Answer Incorrect Answer
    B μ Emāˆ’Ā² sāˆ’Ā¹ Correct Answer Incorrect Answer
    C EMJāˆ’Ā¹ Correct Answer Incorrect Answer
    D g MJāˆ’Ā¹ Correct Answer Incorrect Answer

    Solution

    Photosynthetically active radiation (PAR) is often measured in micromoles of photons per meter squared per second (μmol/m²/s).

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