"-logy" words

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Across
  1. 2. | The application of scientific knowledge for practical purposes.
  2. 5. | The study of living organisms.
  3. 6. | The study of rocks and minerals.
Down
  1. 1. | The study of myths and legends.
  2. 3. | The study of the mind and behavior.
  3. 4. | The study of the environment and ecosystems.