The USGS Water Science School
Back to previous page
If I asked you where the beginning of the edge of a bicycle wheel begins, you'd know that was a trick question. Technically, there is no beginning point of the water cycle - but you can still have an opinion about it, though. The table below lists the opinions of 60,989 people as to where they think the water cycle begins.
|Water-cycle component||Number of responses|
|Freshwater storage||1,115 (2%)|
|Groundwater discharge||1,124 (2%)|
|Groundwater storage||2,357 (4%)|
|Ice and snow||4,381 (7%)|
|Snowmelt runoff||1,083 (2%)|
|Surface runoff||2,423 (4%)|
Back to the water-cycle home page.