Across
- 3. the underground boundary, or upper surface, separating the saturated zone (zone of saturation) from the unsaturated zone (vadose zone) above it
- 4. the gradual caving in or sinking of an area of land.
- 6. 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.
- 9. the imposition of one group's values, beliefs, and practices onto another, typically through economic, technological, or media superiority.
- 10. 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.
- 12. is the underground area, located below the water table, where all pores, fractures, and voids in soil or rock are completely filled with water.
- 14. the relatively clean waste water from baths, sinks, washing machines, and other kitchen appliances.
- 15. a mass of snow on the ground that is compressed and hardened by its own weight.
- 16. the contamination of water bodies like rivers, lakes, oceans, or groundwater by harmful substances (chemicals, microorganisms, trash) from human activities, making the water unsafe for use, disrupting ecosystems, and degrading overall water quality.
- 17. measures the total volume of freshwater used, directly and indirectly, to produce the goods and services consumed by an individual, business, or nation.
- 18. the total volume of freshwater consumed, evaporated, or polluted during the entire production process of a good or service.
Down
- 1. an artificial channel for conveying water, typically in the form of a bridge across a valley or other gap.
- 2. the industrial process of removing salts, minerals, and other impurities from seawater or brackish groundwater to produce fresh water suitable for human consumption, irrigation, and industrial use.
- 5. 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.
- 7. a large natural or artificial lake used as a source of water supply.
- 8. a natural or man-made surface capable of withstanding repeated, heavy use—such as trampling, camping, or vehicular traffic—without suffering long-term damage or degradation.
- 11. the draining away of water (or substances carried in it) from the surface of an area of land, a building or structure, etc.
- 13. water that has been used in the home, in a business, or as part of an industrial process.