Across
- 1. result of buildup and discharge of electricity between the ground and a cloud
- 5. harmful substances found in the environment
- 7. naturally occurring element or substance that are found on earth
- 8. change in climate due to elevation
- 10. number of births per 1,000
- 12. creation of products
- 13. things people use
- 14. slow warming of the earth
- 16. originate over the Pacific Ocean
- 17. shaking or trembling of the earth
- 19. flowing bodies of water overflow their banks
- 20. rate of cooling as a result of wind or air movement
Down
- 2. dangerous wastes
- 3. countries with low standard of living
- 4. originate over the Atlantic Ocean
- 6. different methods, they can stop creating toxic wastes
- 9. solid, liquid, or gas that are poisonous
- 11. long period of drynss
- 15. small bodies of water rise quickly
- 18. use of tools and skills to make life easier
