watersheds

4. Water that is found on the surface of the Earth, such as rivers, lakes, and reservoirs
6. An area of land that drains into a particular water body
7. The arrangement of the natural and artificial physical features of an area
9. The primary pathway through which water flows in a watershed
11. The end point where the watershed drains into a larger body of water
14. Excessive withdrawal of water for agricultural, industrial, or domestic use
16. Collecting and storing rainwater for future use
17. Smaller streams or rivers that flow into a larger one
19. Strategies to protect and manage water resources, including sustainable practices and reducing pollution
20. The source of a river or stream

1. A geological formation that can store and transmit groundwater
2. Any form of water that falls from clouds and reaches the ground, such as rain, snow, sleet, or hail
3. The process by which water enters the soil and becomes groundwater
5. Benefits provided by natural systems, including clean water, flood regulation, and habitat provision
8. Water stored in aquifers beneath the Earth's surface
10. The process by which water changes from a liquid to a gas or vapor
12. The process by which water vapor in the air is changed into liquid water
13. Contaminants that degrade water quality, often from industrial activities, agriculture, and improper waste disposal
15. The continuous movement of water through the atmosphere, surface, and groundwater
18. Water that flows over the ground surface rather than infiltrating into the soil