Across
- 2. Water , Water with very few dissolved salts; it is renewable but limited.
- 5. Mining , Using groundwater faster than it can be replaced, making it nonrenewable.
- 8. ,A process that releases hydrogen from methane and produces carbon dioxide.
- 9. Zone, An area where surface water soaks into the ground and reaches an aquifer.
- 11. ,A permeable layer of rock and soil that holds groundwater.
- 13. of Aeration , The upper layer of soil or rock with air-filled spaces between particles.
- 14. Zone ,The bottom of a body of water, home to decomposers and organisms adapted to deep water.
- 18. Pollution ,Pollution that comes from many diffuse sources over a large area.
- 20. Pollution ,Large amounts of sediment from erosion change aquatic environments and degrade water quality.
- 23. ,Landscaping using native or drought-resistant plants to conserve water.
- 24. ,A material with spaces or pores that can absorb water.
- 25. Pollution , A heat source raises the temperature of a waterway, reducing oxygen levels.
Down
- 1. Pollution ,Pollution that comes from a single, specific location (e.g., factory pipe).
- 3. ,Excess nutrients (like phosphorus and nitrogen) cause rapid algae growth, reducing oxygen and harming aquatic life.
- 4. Eutrophication ,Eutrophication caused by human activity, especially fertilizer use.
- 6. Energy , Energy generated when water flows through a dam and turns turbines.
- 7. Water , Includes lakes, ponds, and rivers; freshwater found above ground.
- 10. , An area of land that supplies water to a river system.
- 12. ,A material with no pores that water cannot move through.
- 15. , A process that uses electricity to break water into hydrogen and oxygen gases.
- 16. of Saturation , The lower layer of soil or rock where all the spaces are filled with water.
- 17. ,A wetland formed where a river meets the sea, containing brackish water.
- 19. Pollution , Pollution from pathogens and viruses entering a waterway, causing health issues.
- 21. ,The process of removing salt from saltwater to make freshwater.
- 22. , A deep hole dug to access groundwater in the zone of saturation.
