Question

Which form of weathering (chemical or physical) forms caves?


chemical


physical

Answer 1

Caves are primarily formed through **chemical weathering**. This process typically occurs when slightly acidic water, which can form from carbon dioxide in the atmosphere mixing with rainwater, seeps into the ground and reacts with limestone or other soluble rock types. This chemical reaction dissolves the rock over time, creating underground voids and caverns that can develop into caves. While physical weathering can contribute to the overall breakdown of rock, the formation of caves is mainly attributed to chemical processes.