separation of substances

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Across
  1. 2. farming practice
  2. 3. to separate different size components
  3. 5. filtration
  4. 6. to separate the clear liquid after sedimentation
  5. 7. to separate soluble substance from the liquid
Down
  1. 1. separating insoluble particles
  2. 4. to separate mixture of lighter and heavier component