How does the rock composition affect rate of weathering?
The Rock Composition really affects the rate of weathering because different types of rocks will react differently to water and other substances. If you pour water on flat marble and leave it, the water would usually leave a mark or a stain on marble depending on what color the marble is. If the marble is black, the stain would have a high chance of being gray. If you pour water on a slab of limestone, the water would have a high chance of just passing through. After a few times of pouring, the slab of limestone would have like an indent if all of the ours were in the same place.