Which is one step that geologists use to find the epicenter of an earthquake? OThey look at data from at least one seismograph.

O They measure the difference between arrival of P waves and S waves.

O They draw circles around the epicenter from three locations.

O They obtain information about the intensity of earthquakes from seismographs.

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:

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