Across
- 1. all living things need...
- 4. not clear; containing tiny specks of sediment or other solid matter
- 5. water can exist as a solid,liquid, and ...
- 8. the salinity of the dead sea allows swimmers to...
- 10. water that has been used or contaminated by human activity
- 12. a network of piped that transports dirty or used water
- 17. water dissolves many substances, including toxic...
- 18. water must be treated before it is safe to...
Down
- 1. an area surrounded by high land and drained by a river and its tributaries
- 2. water that contains feces and urine; also called sewage
- 3. water that has been used for cooking, laundry,bathing, or similar tasks
- 6. two hydrogen and one _________ make?
- 7. the sun provides the energy to drive water...
- 9. artificially raising the temperature (for e.g. water)
- 11. a substance used to provide nutrients to plants, usually for the purpose of increasing crop production
- 13. a measure of of the quantity of dissolved salt in water
- 14. water is clear,colourless, and has no...
- 15. rain ________ damage has coast the Canadian forestry industry hundreds of millions of dollars
- 16. water can be used in a sustainable...