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Across
- 2. Fiber that transmits signals
- 4. Relating to sight or light
- 6. A word related to science
- 9. Glass that splits light into colors
- 10. Relating to the sun
- 11. Biological classification rank
- 12. A word related to science
Down
- 1. A word related to science
- 3. Protective gas layer in atmosphere
- 5. A word related to science
- 7. Focused beam of coherent light
- 8. Plant life of a region