Here's why:
* Organic Limestone: This indicates the limestone is composed of the remains of marine organisms, like coral, algae, and shells.
* Reefs: These are underwater structures built by these organisms. Over time, their skeletons and shells accumulate, harden, and become limestone.
* Land: This suggests the reef has been lifted above sea level through geological processes, like tectonic uplift.
It's important to note that there are other ways limestone can form, but the combination of organic material and its presence on land strongly points to a reef origin.
