Across
- 4. Use of rivers, lakes, and groundwater.
- 6. Flows of nutrients through the environment.
- 7. Variety of living things on Earth.
- 8. System change that affects forests and farms.
Down
- 1. Cycle that moves minerals from rocks to living things.
- 2. Cycle that moves nutrients through soil and plants.
- 3. Change in Earth’s temperature and weather patterns.
- 5. Cycle that moves CO₂ through plants and air.