Across
- 2. creating "step" levels on hillsides to prevent soil loss
- 5. crops planted to improve soil health
- 7. Contains the ozone layer
- 8. Protects life and regulates climate, weather, and temperature for the Earth
- 9. damage to soil by wind, water, or human activities
Down
- 1. IN ORDER: Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere
- 3. Nitrogen, Oxygen, Carbon Dioxide, Water Vapor
- 4. farming across the slope of land to slow runoff and reduce erosion
- 6. O horizon, A horizon, B horizon, C horizon, R horizon