What are some examples of water resources?
Surface water and groundwater
We basically classify water resources (freshwater) into two classes:
Surface water resources: lakes, streams, rivers are classified under this class. Lakes are stagnant water bodies. Streams and rivers are running water bodies. Oxygenation (from air) occurs easily in running water bodies.
Groundwater resources: they are classified under confined and unconfined aquifers. You need to dig a well to reach water.
There are other sources such as icebergs. They are not everywhere and some are melting due to global climate change. Some people visit mountain tops to bring ice to hot cities (for example in southern Turkey). This is an economic activity.