Across
- 3. resources, materials and energy needed by humans
- 4. all the water on the earth
- 6. the move to cities
- 7. an animal that eats other animals
- 9. fuel made from dead plants and animals
- 10. worldwide
- 12. things, organisms
- 14. a lack of food water or shelter
- 15. everything around us
- 17. the air around the earth
- 19. nino, a warm weather phenomenon
Down
- 1. an element in all living things
- 2. the ability to keep going
- 5. sprawl, the spread of communities outside of cities
- 8. a plant eater
- 11. the movement of water
- 13. footprint, the resources an individual uses
- 16. change in inherited characteristics over
- 18. from the sun