Across
- 3. Use of tools and skills to make life easier
- 6. Slow warming of the earth cause by the burning of fossil fuels
- 8. Long period of extreme dryness and water shortages
- 9. Harmful substances found in the environment
- 10. Occur when flowing bodies of water overflow their banks
- 14. Change in climate due to elevation
- 16. The creation of products
- 19. Number of deaths per 1,000 of a population each year
- 20. Shows the things found and produced in an area
- 21. Originate over Pacific Ocean
Down
- 1. Shaking and trembling of the earth
- 2. The rate of cooling as a result of wind or air movement
- 4. Number of births per 1,000 of a population each year
- 5. Countries with low standard of living industries
- 7. Nature's most violent storm
- 11. Result of buildup and discharge of electricity between the ground and a cloud
- 12. Naturally occurring elements or substances found on Earth
- 13. Different methods that can stop creating so many toxic waste
- 15. Solids, liquids, or gases that are poisonous
- 17. Occur when small bodies of water rise quickly and swallow up the land around it
- 18. Originate over Atlantic Ocean