Across
- 6. The level below which the ground is saturated with water.
- 7. Runoff is water that flows over the surface of the ground.
- 9. A water-bearing stratum that is confined or overlain by a rock layer that does not transmit water in any appreciable amount or that is impermeable.
- 12. The water embedded in a product, that is, the water consumed during its process of production.
- 15. The amount of fresh water utilized in the production or supply of the goods and services used by a particular person or group.
- 16. Precipitation which infiltrates the ground and percolates downward through spaces in soil, gravel, and rock until an impenetrable layer of rock or clay stops it.
- 17. Surface runoff of water that generally can be counted on as a stable source of water from year to year.
- 19. Water that contains very low levels of dissolved salts.
Down
- 1. The ground below the water table.
- 2. Large lake used as a source of water supply.
- 3. Water that collects on the surface of the ground.
- 4. The exhalation of water vapor through a plant’s stomata.
- 5. The process of removing salt from seawater.
- 6. An area or ridge of land that separates waters flowing to different rivers, basins, or seas.
- 8. Prolonged period of abnormally low rainfall, leading to a shortage of water.
- 10. An overflowing of a large amount of water beyond its normal confines.
- 11. A body of permeable rock which can contain or transmit groundwater.
- 13. Area from which all precipitation flows to a single stream or set of streams.
- 14. A structure built across a river to control its flow.
- 18. Area of low-lying ground adjacent to a river, formed mainly of river sediments and subject to flooding.