Hey! 8B Solve this

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Across
  1. 2. liquid metal
  2. 5. ideal fuel
  3. 7. softmetal
  4. 8. light and sound
  5. 9. moving air
  6. 10. hydrogen and oxygen
Down
  1. 1. insulator
  2. 3. has 4 zones
  3. 4. jewellery
  4. 5. non bio degradable
  5. 6. solar energy
  6. 8. wire