How to pronounce “karst” in English

Chemical weathering, for instance, occurs when chemical reactions caused by water or other substances, like acid that oozes from lichens, transform or destroys the minerals in rocks.This is how we get karst landscapes: areas mostly made of carbonate rock, which dissolves when touched by weak acid.And you know what’s slightly acidic? Rain.

And Jeff Bezos, when he came on with the funding for this project, he was also buying some of these ranch properties in West Texas for his Blue Origin launch facility.And we found this amazing site that's karst limestone, something that we can carve in underground.It's also very close to Carlsbad Caverns.

This is the monument.And again, talking about the striking limestone karst landscape here.You can see this monument here, and you can enter it.

And not only can groundwater create incredible formations like those caves in Slovenia, but it can also lead to geological disasters.Sinkholes, for example, are common in karst landscapes.Groundwater can dissolve so much rock that the top layers collapse.