Which of the following is/are not true
◯ Water flows from high elevation to low elevation
◯ Smaller watersheds are nested within larger watersheds
◯ The amount of water in all the worlds rivers is greater than the amount of groundwater in the world
◯ Watersheds represent an area of land where all the water that is under it or drains off it goes to the same place
◯ All of the above are true