Limestone tends to form natural caves thanks to what a its sedimentary nature b its porous and nonporous layes c its chemical composition d its tubular structure?

Limestone tends to form natural caves primarily due to its chemical composition, which includes calcium carbonate. This material is susceptible to dissolution by slightly acidic water, a process known as chemical weathering. As the water seeps through cracks and porous layers, it gradually erodes the rock, creating underground cavities and cave systems.