phon- photo- tele-

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Across
  1. 2. Chemistry action of light
  2. 3. Communicating from far away
  3. 4. A TV broadcast
  4. 7. Using light to copy paper
  5. 10. Hearing sound through your ear
  6. 11. A portable telephone
  7. 12. A device used to make sound louder
  8. 14. Sound
  9. 16. Using a scope to see things close up
Down
  1. 1. Light
  2. 2. Plants using light as a source of energy
  3. 3. Having a conference faraway
  4. 5. An image of a person or object
  5. 6. A device for transmitting sound
  6. 8. Study of sounds used in speaking
  7. 9. Mail that goes faraway
  8. 13. Hearing sound through an earpiece that goes on your head
  9. 15. Far