<span> Some of the water may infiltrate deeper, recharging groundwater aquifers. If the aquifers are porous enough to allow water to move freely through it, people can drill wells into the aquifer and use the water for their purposes. Water may travel long distances or remain in </span>groundwater storage<span> for long periods before returning to the surface or seeping into other water bodies, such as streams and the oceans.</span>
Water that reaches Earth as precipitation becomes groundwater. If that groundwater moves through the unsaturated soil zone into the saturated zone, it becomes part of an aquifer.
Each branch point on the cladogram represents where species split off into new ones. The node represents the last point at which 2 new species shared a common ancestor.
