Across
- 2. rapid, dense growth of algae that robs the water of oxygen as it dies and decomposes
- 3. the water found in cracks and pores in sand, gravel, and rocks below the earth's surface
- 4. animal that lacks a backbone and is visible to the naked eye
- 5. the land that water flows across or under on its way to a river
- 6. the amount of land and water needed to support one's lifestyle using current technology
- 9. open space or connector along a natural corridor (such as a river) used for parks and trails
- 10. discharge entering a stream at a specific time, detectable point such as a pipe or outfall
- 12. a natural system linked by living (plants, animals) and nonliving (soil, air, water) things
- 13. eroded soil particles that wash or blow into rivers
- 14. a semi-enclosed area where fresh water from a river meets salty water from the sea
- 15. all the land drained by a river, stream or lake
Down
- 1. diffuse runoff from large areas of land
- 2. a porous rock layer underground that is a reservoir for water
- 7. pertaining to the edges of steams or rivers
- 8. plants and trees surrounding a river or stream
- 11. surplus water from rain and melted snow