Environmental Systems

1234567891011121314
Across
  1. 2. the relatively clean waste water from baths, sinks, washing machines, and other kitchen appliances.
  2. 5. a large natural or artificial lake used as a source of water supply.
  3. 7. reliable or durable surface refers to ground, such as rock, gravel, sand, or, in some cases, ice and snow, that can withstand repeated, heavy foot traffic or equipment use without sustaining long-term damage or requiring significant recovery.
  4. 9. the total volume of freshwater consumed, evaporated, or polluted to produce a specific good or service, from raw material extraction to final product
  5. 11. excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen.
  6. 12. an ancient, low-tech, and non-pressurized agricultural method that involves applying water to fields by allowing it to flow over the soil surface, often using gravity, small ditches, or furrows to direct water
  7. 13. the gradual caving in or sinking of an area of land.
Down
  1. 1. water that has been used in the home, in a business, or as part of an industrial process.
  2. 3. a highly efficient micro-irrigation method that delivers water slowly and directly to the root zone of plants through a network of pipes, tubes, and emitters, minimizing water loss from evaporation, runoff, and weeds
  3. 4. the industrial process of removing salts, minerals, and impurities from seawater or brackish groundwater to produce fresh water suitable for human consumption, irrigation, and industrial use
  4. 6. an artificial channel for conveying water, typically in the form of a bridge across a valley or other gap.
  5. 8. relating to the ideas, customs, and social behavior of a society.
  6. 10. a further competition, election, race, etc., after a tie or inconclusive result.
  7. 14. a mass of snow on the ground that is compressed and hardened by its own weight.