Across
- 3. Decomposition of organic waste to produce nutrient-rich soil.
- 4. Footprint: Measure of environmental impact in terms of greenhouse gas emissions.
- 5. Chemical compounds depleting the ozone layer.
- 7. Excessive nutrients in a body of water.
- 10. Capable of being broken down by natural processes.
- 14. Process of increasing acidity in a substance or environment.
- 16. Air pollution mixture of smoke and fog.
- 18. Harmful substance introduced into the environment.
- 20. Chemical formula for water.
Down
- 1. Water present beneath the Earth's surface.
- 2. Energy: Energy derived from replenishable sources.
- 6. Warming: Increase in Earth's surface temperature due to greenhouse gases.
- 8. Quality Index: Measurement system for assessing air quality.
- 9. Waste disposal site.
- 11. Effect: Trapping of heat in the Earth's atmosphere.
- 12. Rain: Precipitation resulting from acidic pollutants in the atmosphere.
- 13. Treatment: Purification process for making water safe to consume.
- 15. Process of removing salt from seawater.
- 17. Layer: Protective atmospheric layer absorbing UV radiation.
- 19. Scale: Measurement system for acidity or alkalinity.