Changes in local environments can have global effects for several reasons. Animals, like birds, migrate from region to region. A change in one of their environments can cause behavioral changes which will affect other organisms living in these environments. Air and water move among regions.
If you're talking about one storm for each, then acid rain would erode more Because acid breaks down material much easier then water.
(amusing they are falling at the same speed)
aquifers yaaaaaaaay water from underground usually comes from aquifers
