Water

2. The weak attraction between water molecules that gives water unique properties like high heat capacity and surface tension
3. Underground caverns and porous layers of sand, gravel, and rock where groundwater is collected and stored
5. The general process of removing salt from ocean or brackish water to produce usable fresh water
10. A desalination method that forces salt water through a semi-permeable membrane that allows water molecules to pass but blocks salt
11. The entire area of land that drains into a single river, lake, or ocean basin
12. Conduits, canals, or pipes constructed to transport water over long distances, typically from rural watersheds to urban areas
14. A specific water purification process that involves heating salt water until it evaporates, leaving salts behind, and then condensing the vapor
15. A large surface crater caused by the collapse of an underground cave roof, frequently triggered by excessive groundwater withdrawal
16. The movement of fresh water from precipitation and snowmelt across the land surface into bodies of water

1. The supply of fresh water stored underground in porous rock and soil.
4. Precipitation that remains above ground in lakes, rivers, streams, and ponds
6. Embankments built along the banks of a river to prevent it from overflowing into neighboring land
7. A water-conserving agricultural technique that delivers water directly to plant roots through perforated tubing (also known as drip irrigation)
8. The low-lying area bordering a river channel that has a high potential to submerge during heavy rains
9. Reusable wastewater from sinks, showers, and washing machines that has not come into contact with raw sewage
13. The sinking or settling of the land surface, often caused by the over-pumping and depletion of aquifers