energyaa

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Across
  1. 2. "x natural forces and resources"
  2. 3. to change properties etc.
  3. 4. apply oneself to something, direct one's efforts towards something, such as a question
  4. 10. periodic
  5. 11. synonym for separation
  6. 14. global
Down
  1. 1. producing a voltage when exposed to radiant energy (especially light)
  2. 5. easy, simple, effortless
  3. 6. a compromise
  4. 7. integral, characteristic trait
  5. 8. an obstacle
  6. 9. original, first version
  7. 12. add together
  8. 13. gather