The forests that grows over the limestone forms mulch that produces the acid required.
That's true but the prime solvent is Carbonic Acid: atmospheric carbon dioxide dissolved into rain-water.
Caves form when acidic rain dissolved limestone.
Dissolved limestone can form stalactites and stalagmites in caves through the process of precipitation when the calcium in the limestone re-crystallizes. It can also contribute to the formation of karst landscapes such as sinkholes and caves due to the chemical weathering of the rock.
Caves usually form in areas with limestone or other soluble rocks that can be dissolved by water over long periods of time. Common locations for cave formation include regions with karst topography, such as in limestone landscapes or near volcanic activity, where lava tubes can create caves.
Most caves are made from limestone because limestone is a sedimentary rock that is easily dissolved by water. Over time, acidic groundwater seeps into the cracks and crevices, dissolving and eroding the limestone to form cave systems. The process is known as karstification and is responsible for the creation of many limestone caves.
In areas where the rocks are made of limestone, water will dissolve the limestone and form underground caves. In these caves water containing dissolved limestone will drip from the roof. As the drips form some of the water evaporates and limestone is deposited out of solution. Thus, from where the drips are occurring and on the floor below, pilers start to form, the pilers on the floor are called 'stalagmites' and the pilers hanging from the roof are called 'stalactites'.
Most caves are made out of limestone, which is a sedimentary rock composed of calcium carbonate. This rock is easily dissolved by acidic water, leading to the formation of caves through a process called chemical weathering and erosion. Other types of caves can also form in volcanic or igneous rock, such as lava tubes.
The dissolved materials in caves are carried away by water flowing through the cave system. These materials can be deposited outside the cave as mineral deposits or flushed out into surface water bodies.
by limestone
Limestone is formed in caves through a process called cave formation or speleogenesis. This occurs when water containing dissolved minerals, like calcium carbonate, seeps through cracks in the rock and evaporates, leaving behind deposits of limestone. Over time, these deposits can accumulate to form intricate cave structures.
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."
Right - rain absorns atmospheric CO2 to become slightly acid. When this water percolates through discontinuities in limestone, the rock is dissolved by this carbonic acid (an example of chemical weathering), and over time the conduits this creates enlarge and coalesce to form caves.
Limestone is the type of rock that is commonly dissolved by water to form stalactites and stalagmites in caves. This process occurs over thousands of years when calcium carbonate in the limestone is slowly deposited as water drips from the cave ceiling.