1. soil: heterogeneous (particles of many different compositions)
  2. charcoal: homogeneous
  3. seawater: homogeneous (if filtered)
  4. wine: homogeneous
  5. glass: homogeneous
  6. quartz: homogeneous
  7. blood: heterogeneous (blood cells differ from plasma)
  8. bone: heterogeneous (marrow differs from outer bone)

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