Audre

123456789
Across
  1. 5. That part of the precipitation, snow melt, or irrigation water that appears in uncontrolled
  2. 7. A man-made substance covering natural land
  3. 9. A molecule that all living creatures need
Down
  1. 1. enters waterways from human and animal waste,
  2. 2. Occurs naturally in the environment from soils and plants
  3. 3. Caused by the presence of suspended matter such as clay
  4. 4. is a precipitation collector
  5. 6. Occurs naturally in mineral deposits, and soil, ect.
  6. 8. Represented on a scale of 0-14 where 0 is the most acidic, 14 is the most alkaline, and 7 is neutral.