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Identify a sampling method which is not non-destructive.

  • A.Sub-surface coring
  • B.Using of neutron probes to measure soil water
  • C.Fourier transform infrared spectroscopy
  • D.Time domain refractometry to measure soil water

Answer: A

Sub-surface coring removes a sample of soil, so it is a destructive method of sampling. Neutron probes, FTIR spectroscopy and time domain methods measure the property without removing a sample, so they are non-destructive. The question asks for the one that is not non-destructive, which is sub-surface coring.

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