The group of hardwoods that are suitable for railway sleepers in Nigeria is

The group of hardwoods that are suitable for railway sleepers in Nigeria is

  • A.
    pine, fir and mahogamy
  • B.
    mahogamy, obeche and iroko
  • C.
    gmelina, teak and spruce
  • D.
    obeche, mahogamy and pine
Correct Answer: Option B
Explanation
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