the correct answer would be earthquakes because it gives us the answer right in the question by saying "a region where tectonic activity is", and in earthquakes they call the parts of the earthquake where it moves the ground apart tectonic plates.
Hope I helped.
Aquaculture - growing of plants or animals in freshwater or marine ecosystems
Aquifers - underground source of water
Conservation - responsible use and management of natural resources
Overfishing - removing fish from an area at a rate faster than the fish can replace themselves
N-N because they are stronger because they’re the same
Pennsylvania, Utah, Illinois, Massachusetts, Ohio, California, Arizona, Texas, New York, New Jersey... Sorry that's all I could help you with. Others I have to search it up, but I can't so that's all.