Statistics for Geography Chain: Rivers

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Clue	River	% Correct
Longest in the world	Nile	100%
Largest in the world	Amazon	99%
One of the two potamoi defining Mesopotamia	Euphrates	97%
China's longest	Yangtze	95%
Vital waterway of Central and Western Europe	Rhine	89%
Namesake of a virus that caused a famous outbreak in West Africa in 2014	Ebola	88%
Principal river of West Africa	Niger	86%
River of Rome	Tiber	85%
Famously crossed by Julius Caesar	Rubicon	67%
Major river draining the Great Lakes of North America	St. Lawrence	67%
Major river feeding the Ganges Delta	Brahmaputra	53%
Separates Manchuria from the Russian Far East	Amur	51%
This "river" in New York City is actually a tidal estuary	East	48%
Siberian river whose mouth is the world's longest estuary	Ob	48%
The Pyrenees mountains form the northern boundary of this river's basin	Ebro	47%
Mandalay sits on its eastern bank	Irrawaddy	41%
River system naturally connected to #1 via the Casiquiare distributary	Orinoco	36%
African river famous for its inland delta	Okavango	26%
Parallel to the Syr Darya	Amu Darya	25%
Tributary of the Indus; known as Iravati in the Vedas	Ravi	10%