Chemical weathering - the rock is dissolved by rain-water acidified slightly by absorbed atmospheric carbon-dioxide.
Mammoth Cave is a limestone cave system, located in Kentucky, USA. It is a type of karst landscape, characterized by the dissolution of soluble rocks like limestone, resulting in unique underground formations and passageways.
A sinkhole is the term used to describe a depression in the ground caused by a cave collapse. It can also be the result of acidic water dissolving limestone.
chemical change
Solid limestone may change into a cave when it is dissolved by acidic rainwater or groundwater over long periods of time. The water dissolves the limestone, creating underground voids and passages that eventually form a cave system. Other factors like tectonic activity or volcanic activity can also contribute to cave formation in certain circumstances.
Mammoth Cave is typically associated with the Happy Hollow Member of the Girkin Limestone, which is a fossiliferous, marine limestone deposited in a shallow, tropical sea during the Mississippian Period. This limestone contains abundant fossilized shell fragments and marine organisms, reflecting the environment in which it was formed.
acidic groundwater
Limestone and limestone formations.
it is a 'karst' cave, i.e. formed by the action of water on limestone.
The ground-water is a solution of calcium carbonate it has dissolved from the limestone above the cave. The mineral is subsequently precipitated as deposits of calcite in the cave: stalatcties & stalagmites, and flowstone on the floor and walls.
From dissolution and erosion of limestone by acidic water over time.
Limestone doesn't exactly "help" a cave unless the stalagmite's and such are what you are looking for. Limestone is what creates those.
Limestone caves are sometimes called solution caves because they are formed through a process called solution weathering. This occurs when water containing carbon dioxide dissolves the limestone rock, creating cave systems over time. The dissolved limestone is carried away in the form of a solution, hence the term "solution cave."
Jieta Grotto is a limestone cave it is not man-made.
Level 45 in the lake cave is nothing but limestone.
Limestone.
Dissolving limestone.
Same way as any limestone cave: dissolution of the rock by weakly acidic water flwoing through fractures and other discontinuities.