Question

Underground flow of water is more common than surface run-off in limestone areas. Why?

Answer 1

The results of the work of groundwater cannot be seen in all types of rocks. But in rocks like limestones or dolomites rich in calcium carbonate, the surface water as well as groundwater through the chemical process of solution and precipitation deposition develop varieties of landforms. These two processes of solution and precipitation are active in limestones or dolomites occurring either exclusively or interbedded with other rocks. Therefore, the underground flow of water is more common than surface run-off in limestone areas.