Limestone
A hammer.
As it starts to break down all of the rock it starts to create space therefor a cave or cavern can be made.
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stalagmites
When too much erosion occurs in a cave the of the cave will collapse and create a sinkhole.
A hammer.
Weak acids formed in rainwater seep into the ground , when they weather rock
Acidic waters in a cave can be very dangerous to spelunkers. The acid that the water contains can burn the skin severely.
As it starts to break down all of the rock it starts to create space therefor a cave or cavern can be made.
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.
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Precipitation of calcium carbonate in its crystalline form, calcite, from solution in weakly acid ground-water from the limestone above the cave.
1 Running water on the surface of the earth erodes the land. Groundwater also can cause erosion under the surface. As water flows through the soil, acid is formed. This acid can cause minerals to be dissolved.2 Minerals that are carried in groundwater can also be deposited in other places. This cycle of erosion and deposition can cause underground caves to form. This happens especially in areas where there is limestone below the surface.3 A cave is an underground opening. It has a connection to the surface of the earth. A cave is formed by the erosion of limestone under the ground. The acid water moves through the cracks in the limestone and makes them larger.
Rain water + atmospheric CO2 gives Carbonic Acid - very weak but over time able to dissolve limestone.
A cave that is underwater..? It's a cave that lies underneath a body of water.
Yes, caves are formed when carbonic acid, which is created by the reaction of water with carbon dioxide, dissolves underground limestone. Over time, the dissolved limestone is carried away by water, creating large openings and chambers that we call caves.
It doesn't! :-)) Caves represent a loss of rock, not a change, by dissolution of the limestone by weakly acid ground-water.