Who would weather faster a fine grained or coarse grained rock why?

Coarse-grained rocks typically weather faster than fine-grained rocks because their larger grain sizes allow for more exposure to environmental factors such as water, air, and temperature changes. The increased surface area of coarse-grained rocks facilitates the chemical and physical processes of weathering. In contrast, fine-grained rocks tend to be more compact and less permeable, slowing down the weathering process.