Across
- 1. the perceptible natural movement of the air
- 5. use again
- 7. evaporation from plants
- 8. a tube used to convey water
- 10. scientist who studies organisms
- 12. cycle a cycle that contains water
- 13. relating to or produced by the internal heat of the earth
- 14. water held underground in the soil or in pores and crevices in rock
- 16. the conversion of a vapor or gas to a liquid
- 20. a natural resource or source of energy
Down
- 2. of a natural resource or source of energy
- 3. a combustible black or dark brown rock
- 4. the process of removing salt from seawater.
- 6. water that falls from the sky
- 9. long body of water curling into an arched
- 11. are used to provide storage of water for use in many applications
- 15. water, from rain snow melt or other sources
- 17. a barrier constructed to hold back water
- 18. relating to or affected by tides
- 19. sun energy