Which of the following has contributed the most to the increase of invasive species in europe? a. air pollution that has destroyed native plants b. desalination, which has killed native plants c. an increase in trade across the continent d. the lack of invasive species legislation in europe

Almost 98% of earthquakes occur at the boundary of a tectonic plates when they slide against one another. despite this, indiana still has seismic zones that experience increased seismic activity. this is particularly heavy in the wabash valley fault zone in the southwest corner of the state. how do you explain how seismic activity is felt in this area?