Do they though. I don't dismiss the possibility of micro-organisms that may corrode limestone, and microbes certainly help form soil acids that will contribute to the acidity of ground-water hence its aggressivity in contact with carbonate rocks; but I find the blanket assertion very hard to accept. Please cite your sources. The bulk of rock removal in caves is by chemical weathering by carbonic acid: rain-water that has absorbed atmospheric CO2. Soil acids will contribute and these organic acids are fermentation products, but I would not regard the micro-organisms responsible as extremophiles. My disbelief is compounded by your own question, because if you have proven evidence or can cite papers on microbial karst processes, you would not need to ask after such a assertive statement. You would know!
Tents, or caves
There are two ways of presenting income statement: Account Form Statement Form
The two most common types of rock in which sea caves form are limestone and sandstone. This is because these types of rock are more susceptible to erosion by the action of waves and coastal processes, creating caves and other coastal formations over time.
When two sea caves on opposite sides of a headland unite, they form an arch. Over time, continued erosion can cause the arch to collapse, leaving behind a stack. Subsequent erosion can erode the stack to form a sea stack.
One is wind
Two features formed by underground weathering are caves and sinkholes. Caves are formed through the dissolution of limestone by groundwater, while sinkholes are created when the roof of a cave collapses, causing a depression on the surface.
What are two ways solids form from solutions ?
The Description Form, Roster Form, and The Set-Builder Notation Form.
Lick my nips
crystalized and minerals
2,400 and 2,400.0