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      Question

      The ideal pH for most greenhouse growing media

      is:
      A 4.0–5.0 Correct Answer Incorrect Answer
      B 5.5–6.5 Correct Answer Incorrect Answer
      C 7.5–8.5 Correct Answer Incorrect Answer
      D 9.0–10.0 Correct Answer Incorrect Answer

      Solution

      A slightly acidic pH ensures that essential micronutrients like iron and manganese remain available to the plants. If the pH is too high, these nutrients become chemically locked.

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