Most caves are in limestone, which is slightly soluble in rain-water acidified by carbon-dioxide absorbed from the atmosphere. This weak "carbonic acid" corrodes the limestone as it flows through the rock's joints, bedding-planes and faults fromsinks to risings (springs).
There are other caves formed in other ways, such as lava-tubes and mass-movement fissures.
Oh - and by definition caves are underground - you don't need the adjective!
Open entrances. They were used in prehistoric times.
Caverns are typically formed through a process known as karstification, where groundwater dissolves soluble rocks like limestone and carbonate rocks over time. This dissolution, along with other factors such as erosion and tectonic forces, can create underground cavities and passageways that eventually turn into caverns.
Caves are underground. They are big long holes underground. Sometimes, for some unknown reason, the roof of the cave can no longer support the weight of the ground above it and the ground collapses down into the cave. The land sinks. It fills the hole. Where there was a cave, there is now solid ground. Where there was land, there is now a big hole. So, you have a sinkhole when the roof of a cave collapses.
The Shenandoah Caverns are located in Quicksburg, Virginia, in the Shenandoah Valley region of the state.
Luray Caverns is located in the Shenandoah Valley region of Virginia.
Under ground. In caverns. Its not that hard to find Hope this helped
Under ground Caverns are Caused When a New Lake is being Formed, That keeps a Cave under the lake that soon Collapse Because the wieght of the lake/Water, Causes Erosion That Then Is Deposition because the Lake water fills up The under ground Cave.
Under the ground. In caverns. Its not very durable bare in mind. But it looks pretty as blocks
usually under rocks or in the sand or even maybe in the ground
there are no life forms
Caverns can be under water and underground.
Desotto caverns
Yes. The pyramids were too obvious to burglars so they made secret under ground caverns to bury the body.
Lava forms underground in magma chambers. When it erupts onto the Earth's surface through volcanic activity, it becomes lava.
When melted rock cools and hardens in or under the Earth's surface, it forms igneous rock. This process can happen above ground, forming volcanic rocks, or below ground, forming intrusive rocks.
a plate under ground that makes friction forms delta
a plate under ground that makes friction forms delta