Here's why:

* Abundance: Limestone is one of the most abundant rocks on Earth, found in many different geological formations.

* Versatility: Limestone has a wide range of uses, including:

* Construction: Crushed limestone is used as aggregate in concrete, asphalt, and road base.

* Agriculture: Limestone is used to neutralize acidic soils.

* Industrial applications: Limestone is used in the production of cement, glass, and steel.

* Decorative purposes: Limestone is often used as a building stone.

While other rocks like granite, marble, and sandstone are also quarried, limestone takes the top spot due to its widespread availability and diverse applications.