- What is the longest river in Vietnam? A) Red River
B) Mekong River
C) Dong Nai River
D) Gam River
Answer: B) Mekong River - Which river is known as the “Lifeblood of the North”? A) Red River
B) Mekong River
C) Perfume River
D) Black River
Answer: A) Red River - The Mekong River flows into which body of water? A) South China Sea
B) Gulf of Thailand
C) Bay of Bengal
D) East Sea
Answer: A) South China Sea - Which river is famous for its floating markets? A) Red River
B) Mekong River
C) Dong Nai River
D) Perfume River
Answer: B) Mekong River - What is the primary tributary of the Red River? A) Lo River
B) Da River
C) Black River
D) Gam River
Answer: A) Lo River - The Mekong Delta is located in which part of Vietnam? A) Northern
B) Central
C) Southern
D) Eastern
Answer: C) Southern - Which river is known for its historical significance in Hue? A) Mekong River
B) Red River
C) Perfume River
D) Dong Nai River
Answer: C) Perfume River - What is the Vietnamese name for the Mekong River? A) Sông Hồng
B) Sông Mê Kông
C) Sông Đà
D) Sông Cái
Answer: B) Sông Mê Kông - Which river forms part of the border between Vietnam and China? A) Red River
B) Dong Nai River
C) Mekong River
D) Gam River
Answer: A) Red River - The Dong Nai River is primarily located in which region of Vietnam? A) Northern
B) Central
C) Southern
D) Eastern
Answer: C) Southern - Which river is significant for its hydroelectric power stations in Vietnam? A) Mekong River
B) Red River
C) Da River
D) Black River
Answer: C) Da River - What is the main agricultural activity along the Mekong River? A) Rice cultivation
B) Cotton farming
C) Tea planting
D) Coffee production
Answer: A) Rice cultivation - The Red River Delta is known for what type of landscape? A) Desert
B) Mountains
C) Wetlands
D) Forests
Answer: C) Wetlands - What city is situated at the mouth of the Mekong River? A) Hanoi
B) Ho Chi Minh City
C) Da Nang
D) Hue
Answer: B) Ho Chi Minh City - Which river is also called “Song Huong”? A) Mekong River
B) Red River
C) Perfume River
D) Dong Nai River
Answer: C) Perfume River - Which river is known for its diverse ecosystem and biodiversity? A) Mekong River
B) Red River
C) Black River
D) Da River
Answer: A) Mekong River - Which river is a popular site for boat tours in Vietnam? A) Red River
B) Mekong River
C) Dong Nai River
D) Gam River
Answer: B) Mekong River - What type of fish is commonly found in the Mekong River? A) Salmon
B) Catfish
C) Trout
D) Pike
Answer: B) Catfish - The Black River is a tributary of which river? A) Red River
B) Mekong River
C) Dong Nai River
D) Da River
Answer: A) Red River - What natural phenomenon occurs at the confluence of the Mekong River and Tonle Sap Lake? A) Tides
B) Monsoons
C) Flooding
D) Seasonal reversal of flow
Answer: D) Seasonal reversal of flow - Which river is known for its scenic landscapes and cultural significance? A) Red River
B) Mekong River
C) Perfume River
D) Dong Nai River
Answer: C) Perfume River - What is a common recreational activity on the Mekong River? A) Skiing
B) Surfing
C) Fishing
D) Snowboarding
Answer: C) Fishing - Which river is crucial for transportation in the Mekong Delta? A) Red River
B) Mekong River
C) Dong Nai River
D) Gam River
Answer: B) Mekong River - What major city does the Dong Nai River flow through? A) Hanoi
B) Ho Chi Minh City
C) Nha Trang
D) Da Nang
Answer: B) Ho Chi Minh City - The Gam River is a tributary of which river? A) Mekong River
B) Red River
C) Dong Nai River
D) Black River
Answer: B) Red River - Which river is associated with the ancient capital of Vietnam, Hue? A) Mekong River
B) Perfume River
C) Red River
D) Dong Nai River
Answer: B) Perfume River - The Mekong River originates in which country? A) Thailand
B) China
C) Laos
D) Myanmar
Answer: B) China - Which river’s basin is vital for the rice production of Vietnam? A) Mekong River
B) Red River
C) Dong Nai River
D) Black River
Answer: A) Mekong River - Which river is a popular destination for ecotourism in Vietnam? A) Mekong River
B) Red River
C) Perfume River
D) Dong Nai River
Answer: A) Mekong River - The water level of the Mekong River is significantly affected by which factor? A) Industrial pollution
B) Seasonal monsoons
C) Urban development
D) Deforestation
Answer: B) Seasonal monsoons
| River Name | Length | Location | Significance |
| Mekong River | ~4,350 km | Flows through multiple countries, including Vietnam | Longest river in Vietnam; vital for transportation, agriculture, and culture. |
| Red River | ~1,200 km | Northern Vietnam | Known as the “Lifeblood of the North”; important for agriculture and trade. |
| Dong Nai River | ~586 km | Southern Vietnam | Key for hydroelectric power; flows through industrial regions. |
| Perfume River | ~100 km | Flows through Hue | Famous for its scenic beauty and historical significance. |
| Black River | ~100 km | Flows into the Red River | A significant tributary contributing to the Red River system. |
| Da River | ~510 km | Northern Vietnam | Important for hydroelectric power; flows into the Red River. |
| Gam River | ~400 km | Flows into the Black River | Significant for irrigation and fishing. |
| Tachira River | ~200 km | Forms part of the border with China | Important for irrigation and agriculture. |
| Serepok River | ~400 km | Central Highlands | Known for its biodiversity and ecological importance. |
| Cai River | ~70 km | Southern Vietnam | Important for local agriculture and fishing |