Across
- 1. in the environment trees and animals are part of it
- 4. when you need something it is a _____
- 6. biotic surroundings
- 7. to help or assist
- 10. decaying organic matter used for fertilizing
- 11. to eat or induce something
- 12. making or manufacture of an item or material
- 14. heat energy is a form of ______
- 15. to fail to use materials, not put to good use
Down
- 2. to decrease an amount
- 3. the way someone lives
- 5. materials from the environment
- 8. affect on something
- 9. something (eg plastic) introduced to the environment that has a harmful effect
- 13. to use a material again