Across
- 5. Physical rather than biological components
- 8. ---------- is essential for all living things but high levels of it in drinking water can be dangerous
- 9. The amount of oxygen dissolved in water
- 10. The measure of the average kenietic energy of particals in objects
Down
- 1. The amount of salt dissolved in a body of water
- 2. The chemical, physical and biological characteristics in water
- 3. A small microscopic organism drifting or floating in the sea or fresh water
- 4. The quality of being cloudy, opaque or thick with suspended matter
- 6. The measure of acidity and the basicity of aqueous or other liquids
- 7. Relating to or resulting from living things