Tic Tac Toe-Crossword

4. tables The highest part in the ground that is saturated or completely filled with water.
8. pollution which increases the growth of algae.
9. A system that uses underwater sound waves to measure distance and locate objects.
12. The amount of salt in a substance.
13. Areas of land that water drains into when the ground that is saturated or completely filled with water.
15. An underground layer of permeable rock that contains water.
17. Does not allow substances to pass through.
18. basin The entire geographical area drained by a river and its tributaries.
19. The yearly rising and sinking of cold and warm layers in a lake.
20. Water Act Passes in the US in 1972 this law focused regulation on industrial waste and water contamination as well as waste water treatment.
21. A measure of the clarity of water that depends on the amount, size composition of suspend matter.
22. The process of removing salt from ocean water.

1. The movement of water from the surface to greater depths carrying oxygen down allowing animals to thrive.
2. The vertical movement of deep water up to the surface bringing up the nutrients from the deep ocean allowing animals to thrive.
3. shelf The flat or gently sloping land that lies submerged around the edges of a continent and extends from the shoreline out to the continental slope.
5. Pollution that enters water from a specific source that can be identified.
6. A form of nutrient pollution.
7. Allows substances to easily pass through.
10. A shoreline area where fresh water from a river mixes with salt water from the ocean.
11. vent An opening in the sea floor from witch heated water rises and mixes with the ocean water above.
14. A ridge or continuous line of high land from which water flows in different directions.
16. The ratio of the mass of a substance to the volume substance.