Across
- 3. irrigation, flood irrigation uses gravity to control the flow of water through furrows dug next to plants
- 4. a conduit used to convey water over a long distance, either by a tunnel or more usually by a bridge
- 6. water, water that already has been used domestically, commercially and industrially
- 11. footprint, measures the amount of water used to produce each of the goods and services we use
- 14. occurs when the environment becomes enriched with nutrients, increasing the amount of plant and algae growth to estuaries and coastal waters
- 15. pollution, the contamination of water sources by substances which make the water unusable for drinking, cooking, cleaning, swimming, and other activities
Down
- 1. sinking of the ground because of underground material movement—is most often caused by the removal of water, oil, natural gas, or mineral resources out of the ground by pumping, fracking, or mining activities
- 2. surface runoff,surface runoff of water that generally can be counted on as a stable source of water from year to year
- 5. the process of removing salt and other minerals from water
- 7. table, an underground boundary between the soil surface and the area where groundwater saturates spaces between sediments and cracks in rock
- 8. snow on the ground in mountainous areas that persists until the arrival of warmer weather
- 9. water, water that has been used (as in a manufacturing process) : sewage
- 10. Water, the water used to produce the goods and services others need and enjoy
- 12. irrigation, transports water to plants in a slow, controlled system
- 13. of saturation, area where water fills all the open spaces in sediment and rock