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