Chapter 16: the fluvial processes
3. what factor determines the erosive effectiveness of streamflow?
4. describe some of the abrasive tools used by a stream in its erosive activities.
5. list & describe the components of a stream’s load.
6. how does a stream sort alluvial material?
7. is it ever possible for a stream to erode below sea level? explain your answer.
8. what is stream capacity?
9. what is stream competence?
10. why don’t all rivers form deltas?
11. explain how a stream valley is lengthened.

The answer to the question is gold

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: