1easy
Which river is traditionally considered the longest in the world?
2easy
Which river carries the most water by volume in the world?
3easy
Which African lake is the largest by surface area?
4easy
The Mississippi River flows into which body of water?
5easy
Which river flows through Paris?
6medium
Which lake is the deepest in the world?
7medium
The Ganges River is considered sacred and flows mainly through which country?
8medium
Which river flows through Baghdad?
9medium
The Danube River flows into which sea?
10medium
Which Great Lake is the largest by surface area?
11medium
The Yangtze River is the longest river in which country?
12medium
Lake Titicaca, one of the highest navigable lakes, is on the border of Peru and which country?
13medium
The Rhine River flows through which European country and into the North Sea?
14medium
Which river forms part of the border between the U.S. and Mexico?
15medium
The Congo River is in which continent?
16hard
In which country is Lake Baikal located?
17hard
The Mekong River flows through how many countries before reaching the South China Sea?
18hard
Which river flows through Vienna, Budapest, and Belgrade?
19hard
Lake Tanganyika is the longest freshwater lake in the world and borders four countries. Which is NOT one of them?
20hard
The Volga River is the longest river in Europe and flows through which country?
21hard
Which African river has the second-largest flow by volume in the world?
22hard
The Murray River is the longest river in which country?
23hard
Lake Malawi (Nyasa) is shared by Malawi, Mozambique, and which other country?
24hard
The Orinoco River flows mainly through which South American country?
25hard
Which lake is the largest by surface area entirely within one country (the U.S.)?