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      Question

      Urea fertilizer is the main source of nitrogen,applied

      in oir fields ,The NPK ratio of urea is:
      A 46-0-0 Correct Answer Incorrect Answer
      B 0-0-60 Correct Answer Incorrect Answer
      C 20-20-0 Correct Answer Incorrect Answer
      D 16-20-0 Correct Answer Incorrect Answer
      E 10-26-26 Correct Answer Incorrect Answer

      Solution

      Urea contains 46% nitrogen.

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