Which statement describes an example of erosion? a). wind blows against the side of a rock and results in abrasion of rock. b). water freezes within a section of a rock and causes the rock to break apart. c). a glacier carries sediment to a new location and leaves it behind as the ice melts away. d). a tree root grows along the surface of the ground and causes a crack in the ground to widen.

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:

Dall of the above all of the choices make sense

Ithink it is space that makes up 70 percent