WATER vocabulary

2. living organisms such as plants, planktons, animals, and microbes, which are utilized to screen the health of the natural ecosystem in the environment.
5. process in which a water body becomes overly enriched with nutrients, leading to the plentiful growth of simple plant life.
7. land that drains into a river.
8. a river or stream that flows into a larger river or lake
10. smaller area of land that drains to a smaller stream, lake or wetland.
13. Oxygen the amount of oxygen that is present in water.

1. to make something impure or unsuitable by contact or mixture with something unclean, bad, etc.: example: to contaminate a lake with sewage.
3. the largest reservoir of liquid freshwater on Earth and is found in aquifers, porous rock and sediment with water in between.
4. A measure of how acidic or basic a substance or solution is.
6. body of porous rock or sediment saturated with groundwater. Groundwater enters an aquifer as precipitation seeps through the soil. It can move through the aquifer and resurface through springs and wells.
9. the amount of dissolved salts present in water.
11. a natural wide flow of fresh water across the land into the sea, a lake, or another river
12. area where a freshwater river or stream meets the ocean. In estuaries, the salty ocean mixes with a freshwater river, resulting in brackish water.