How do we know plate tectonics exist (list 4-5 pieces of evidence) and why are there different boundaries?

Continent jig-saw shapes when puzzled and combined together, formed one big continent - Pangea, and was separated by drifts. Fossil comparisons of different species were discovered into two different, separated continents in which when you combine them, they were one in the past. Seismic, volcanic, and geothermal activity are found along imagined plate boundaries.  Plates were actually rubbing against each other as evidence is seen on the formed mountain ranges. Paleomagnetism, magnetic field placement in the layers of the rock are present.  

The investiture controversy began as a power struggle between pope gregory vii (1072–85) and henry iv, holy roman emperor (1056–1106).[2] a brief but significant struggle over investiture also occurred between henry i of england and pope paschal ii in the years 1103 to 1107, and the issue played a minor role in the struggles between church and state in france, as well.by undercutting the imperial power established by the salian emperors, the controversy led to nearly 50 years of civil war in germany, and the triumph of the great dukes and abbots. imperial power was finally re-established under the hohenstaufen dynasty. historian norman cantor: