All except lava-tubes, which result from lava draining from under the solidified crust of a lava flow. Most are in limestone, soluble in water acidified by carbon-dioxide from the atmosphere (chemical weathering).
It is called Erosin
Caves are typically formed through a process known as erosion, where water and chemicals gradually break down the rock, creating hollow spaces underground. Over time, the combination of erosion and tectonic activity can lead to the creation of cave systems. These formations can vary greatly in size and complexity, and often contain unique geological features such as stalactites and stalagmites.
No. Most caves are formed out of limestone making that false.
Wookies live in trees, not caves.
The Maquoketa caves in Iowa were formed through years of natural non-glacial erosion.
Caves formed in limestone, as the vast majority are - but there are many caves that contain few or no "speleothems" as the formations are know collectively. The distribution and scale of the formations is subject to many, complex factors.
Fissure, Talus, Solutional, Granite, Slate, Erosional, man-made, rare emerged Sea caves, Sea caves, and Sandstone caves.Most are created over millions of years by water dissolving minerals in the rock, leaving a void or hollow behind.
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Limestone caves are formed through a process called chemical weathering. Rainwater, which is slightly acidic, dissolves the limestone rock over time, creating small cracks. These cracks then widen as more water flows through, eventually forming caves. Additionally, some limestone caves are formed through the erosion of underground rivers.
Other way round! Water and/or air are in caves.:-) Most of the world's caves have formed / are forming in limestone.
Karst caves, and it is the majority of caves; formed by acidic ground-water dissolving the limestone.
They - or it? - are normal karst caves, formed in limestone by its dissolution by water. I believe they still carry a stream: if so they are still forming.