- What is the longest river in Mongolia?
A) Onon River
B) Selenge River
C) Orkhon River
D) Kherlen River
Answer: B) Selenge River - Which river is known for flowing into Lake Baikal?
A) Onon River
B) Orkhon River
C) Selenge River
D) Kherlen River
Answer: C) Selenge River - The Orkhon River is a tributary of which larger river?
A) Selenge River
B) Kherlen River
C) Onon River
D) Amur River
Answer: A) Selenge River - Which river forms part of the eastern border of Mongolia?
A) Onon River
B) Kherlen River
C) Selenge River
D) Orkhon River
Answer: B) Kherlen River - The Onon River is primarily located in which region of Mongolia?
A) Western Mongolia
B) Central Mongolia
C) Eastern Mongolia
D) Northern Mongolia
Answer: C) Eastern Mongolia - Which river is known for its historical significance during the Mongol Empire?
A) Kherlen River
B) Onon River
C) Selenge River
D) Orkhon River
Answer: B) Onon River - The Kherlen River is an important water source for which purpose?
A) Hydroelectric power
B) Agriculture
C) Transportation
D) Fishing
Answer: B) Agriculture - Which river is famous for its picturesque valley and cultural significance?
A) Onon River
B) Orkhon River
C) Kherlen River
D) Selenge River
Answer: B) Orkhon River - The Kherlen River flows into which body of water?
A) Lake Baikal
B) Lake Uvs
C) The Pacific Ocean
D) The Arctic Ocean
Answer: B) Lake Uvs - Which river’s basin is known for its diverse wildlife?
A) Selenge River
B) Onon River
C) Orkhon River
D) Kherlen River
Answer: A) Selenge River - Which river is the primary water source for Ulaanbaatar, the capital of Mongolia?
A) Selenge River
B) Orkhon River
C) Kherlen River
D) Onon River
Answer: C) Kherlen River - The Onon River is formed by the confluence of which two rivers?
A) Kherlen and Orkhon
B) Selenge and Orkhon
C) Onon and Kerulen
D) Onon and Kherlen
Answer: D) Onon and Kherlen - Which river is known for its scenic beauty and is popular for fishing?
A) Orkhon River
B) Kherlen River
C) Selenge River
D) Onon River
Answer: A) Orkhon River - What is the primary direction of flow for the Selenge River?
A) South to North
B) North to South
C) East to West
D) West to East
Answer: A) South to North - Which river runs through the UNESCO World Heritage site, Orkhon Valley?
A) Onon River
B) Kherlen River
C) Selenge River
D) Orkhon River
Answer: D) Orkhon River - What is the main tributary of the Kherlen River?
A) Selenge River
B) Orkhon River
C) Onon River
D) None
Answer: D) None - Which river is often referred to as the “mother river” of Mongolia?
A) Onon River
B) Kherlen River
C) Selenge River
D) Orkhon River
Answer: A) Onon River - The Selenge River flows into which lake?
A) Lake Khovsgol
B) Lake Uvs
C) Lake Baikal
D) Lake Hovsgol
Answer: C) Lake Baikal - Which river is known for its significance in Mongolian folklore?
A) Orkhon River
B) Kherlen River
C) Onon River
D) Selenge River
Answer: C) Onon River - The Kherlen River originates in which mountain range?
A) Altai Mountains
B) Khangai Mountains
C) Khentii Mountains
D) Hentii Mountains
Answer: C) Khentii Mountains - Which river is associated with the ancient capital of the Mongol Empire, Karakorum?
A) Selenge River
B) Onon River
C) Kherlen River
D) Orkhon River
Answer: D) Orkhon River - What is the average length of the Orkhon River?
A) 600 km
B) 1,124 km
C) 800 km
D) 1,200 km
Answer: B) 1,124 km - The Kherlen River is mainly used for which type of transportation?
A) Cargo
B) Passenger
C) Recreational
D) None
Answer: D) None - Which river has the largest drainage basin in Mongolia?
A) Kherlen River
B) Onon River
C) Selenge River
D) Orkhon River
Answer: C) Selenge River - The Onon River is known for its rich deposits of which mineral?
A) Gold
B) Coal
C) Copper
D) Iron
Answer: A) Gold - The Selenge River contributes to the ecosystem of which significant natural feature?
A) Gobi Desert
B) Lake Baikal
C) Altai Mountains
D) Khentii Mountains
Answer: B) Lake Baikal - Which river forms part of the border between Mongolia and Russia?
A) Onon River
B) Kherlen River
C) Selenge River
D) Orkhon River
Answer: C) Selenge River - The Orkhon River is known for what type of environmental challenge?
A) Pollution
B) Flooding
C) Drought
D) Erosion
Answer: A) Pollution - Which river’s valley is known for nomadic herding?
A) Kherlen River
B) Onon River
C) Selenge River
D) Orkhon River
Answer: D) Orkhon River - Which river is considered sacred by the local nomadic tribes?
A) Kherlen River
B) Orkhon River
C) Onon River
D) Selenge River
Answer: C) Onon River
| River Name | Length (km) | Source | Mouth | Significance |
| Selenge River | 1,124 | Khentii Mountains | Lake Baikal (Russia) | Longest river in Mongolia; vital for ecosystems and fisheries. |
| Orkhon River | 1,124 | Khangai Mountains | Selenge River | UNESCO World Heritage site; important for Mongolian history. |
| Onon River | 818 | Khentii Mountains | Amur River (Russia) | Known as the “mother river”; historically significant. |
| Kherlen River | 512 | Khentii Mountains | Lake Uvs | Important for agriculture; flows through eastern Mongolia. |
| Hovd River | 470 | Khangai Mountains | Lake Uvs | Significant for irrigation; flows through the Hovd Province. |
| Ider River | 380 | Khangai Mountains | Selenge River | A tributary of the Selenge; important for local agriculture. |
| Tuy River | 210 | Khangai Mountains | Ider River | Smaller river, contributing to local irrigation systems. |
| Khalkh River | 250 | Khentii Mountains | Onon River | Significant for local wildlife and ecology. |