No, dams are man made barriers constructed to stop the flow of water. Very often these are across rivers in order to create a lake for drinking water called a reservoir (UK). Dams are often used to create electricity via hydro-electric turbines and generators.
a reservoir is a human made thingy.=I .._
These lakes are generally called reservoirs, but it depends on the country. Such a lake is commonly known as either a reservoir or a dam in Australia.
What a salt water lakes is called an ocean
The lakes created store water.
No, ponds and lakes are standing-water ecosystems.
accumulation
Because they are fresh water lakes. If they were salt water, they would be called seas.
they are all called water ways
With only the rarest exception (like the Great Salt Lake), most water in lakes is fresh water.
The water that seeps into the ground after it precipitates is called ground water.
Closed lakes.
Eutrophication?