"river basin vocab": HTML5 Crossword

Across

2. a natural system linked by living (plants, animals) and nonliving (soil, air, water) things (9)
4. a semi enclosed area where fresh water from a river meets salty water from the sea (7)
8. discharge entering a stream at a specific, detectable point such as a pipe or outfall (5,6,9)
9. the amount of land and water needed to support one’s lifestyle using current technology (10,9)
10. animal that lacks a backbone and is visible to the naked eye (17)
11. drainage area of a river (5,5)
13. eroded soil particles that wash or blow into rivers (8)
14. describes the physical features of a place, or the terrain—such as mountains, valleys and floodplains (10)
16. Plants and trees surrounding the stream—often described as a (10,6)
17. the water found in cracks and pores in sand, gravel and rocks below the earth’s surface (11)

Down

1. surplus water from rain and melted snow (10)
3. rapid, dense growth of algae that robs the water of oxygen as it dies and decomposes (5,5)
5. pertaining to the edges of streams or rivers (8)
6. a porous rock layer underground that is a reservoir for water (7)
7. diffuse runoff from large areas of land (8,6,9)
12. all the land drained by a river, stream or lake (9)
15. open space or connector along a natural corridor (such as a river) used for parks and trails (8)