Limestone is a type of rock is especially likely to form caves. The inside of a cave is usually made of stalagmites<span> and </span><span>stalactites.
The picture below is limestone. That's the rock used to form caves.
Hope that helps! -UF aka Nadia</span>
The picture below is limestone. That's the rock used to form caves.
Hope that helps! -UF aka Nadia</span>