<P> Fresh water habitats are divided into lentic systems , which are the stillwaters including ponds , lakes , swamps and mires ; lotic , or running - water systems ; and groundwater which flows in rocks and aquifers . There is , in addition , a zone which bridges between groundwater and lotic systems , which is the hyporheic zone , which underlies many larger rivers and can contain substantially more water than is seen in the open channel . It may also be in direct contact with the underlying underground water . The majority of fresh water on Earth is in ice caps . </P>
<P> Fresh water habitats are divided into lentic systems , which are the stillwaters including ponds , lakes , swamps and mires ; lotic , or running - water systems ; and groundwater which flows in rocks and aquifers . There is , in addition , a zone which bridges between groundwater and lotic systems , which is the hyporheic zone , which underlies many larger rivers and can contain substantially more water than is seen in the open channel . It may also be in direct contact with the underlying underground water . The majority of fresh water on Earth is in ice caps . </P>
where is most of earths fresh water located
where is most of earths fresh water located
ice caps
ice caps