Radiometric dating . See Concept 25.2 (Page) View Available Hint(s)for Part A allows us to indirectly date fossils up to billions of years old based on minerals in surrounding volcanic strata only works on rocks younger than 75,000 years allows us to determine an absolute, errorless date relies on the fact that the daughter isotope decays to the parent isotope at a constant rate can be used to directly date fossils in sedimentary rock

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:

Answer decreased soil salinity;

Ba rock that formed 1,400 million years ago!

Is a glitch? jaja support qin fen on his debut with awaken f