What river carries almost half of russia’s river traffic?

Volga River

Explanation:

The river flows through central Russia and into the Caspian Sea,The national river of Russia,The longest river in Russia,Flows through an area of about 1,350,000 square kilometers.The Volga has many tributaries, most importantly the rivers Kama, the Oka, the Vetluga, and the Sura,The Longest River in Europe.

The answer is Volga River, as you see in the picture is the Volga River carrying 1/2 of Russia's river traffic

I hope this helps!

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: