Across
- 3. Using organisms to clean pollution.
- 6. fixation: Turning air nitrogen into plant food.
- 8. Using resources wisely to protect the future.
- 9. gas: Traps heat in Earth’s atmosphere.
- 10. species: Stable plants or animals in an ecosystem.
- 11. succession: Life growing on bare land.
- 13. species: Non-native species harming ecosystems.
- 14. growth: Rapid population increase.
- 15. footprint: The resources we use and impact we leave.
Down
- 1. species: First organisms in a new area.
- 2. succession: Regrowth after a disturbance.
- 4. capacity: Maximum number an environment can support.
- 5. density: Number of living things in an area.
- 7. cycle: Nature’s recycling system for elements.
- 10. change: Long-term changes in Earth’s weather patterns.
- 12. factor: Anything that restricts growth (like food or space).