Across
- 4. the arrangement of events or dates
- 5. science that deals with the earth
- 7. occur at the same time or rate
- 8. interaction between two different organisms
- 9. the climate and weather of a region
- 10. protect wildlife and the ecology of the forest
- 11. having a particular bad habit
- 12. make a photocopy of
- 17. solid-state device
- 18. same thing on each side
- 19. regions of the surface
- 20. representing the earth
Down
- 1. electromagnetic radiation
- 2. an instrument for measuring the distance traveled
- 3. looking attractive in photographs
- 6. a record of events
- 13. a numerical or other measurable
- 14. the study of the physical features of the earth
- 15. an instrument on a vehicle
- 16. relating to geometry