The water of rivers, ponds, and lakes is soft.
Soft water: Water that does not have dissolved Calcium and Magnesium is called soft water.
As soft water has fewer Calcium ions, there is more lathering action of soaps.
most of the surface water, like lake water, rainwater, and river water, is soft Water because it has tiny minerals like Calcium & Magnesium in it.
So, the water of rivers, ponds, and lakes is called soft water
Therefore, the given statement is true.