What types of geologic areas can neutralize or buffer some inputs of acidic chemicals?

Question

What two types of areas are most sensitive to acid deposition?

Answer 1

your fist question for buffering is areas with a high limestone content,limestone will neutral the acid in things like acid rain  and acid snow melt runoff the Bruce Peninsula and Manitoulin Island areas of Ontario are limestone based and neutralize the acid rain effects.Areas most sensitives would be the Canadian shield very thin top soil cover natural acidic soil from pine tree growth and the carpet of dead needles and the granite bed rock.