- What is the longest river in Sri Lanka?
A) Mahaweli River
B) Kelani River
C) Walawe River
D) Gin River
Answer: A) Mahaweli River - Which river flows through the capital city, Colombo?
A) Kalu River
B) Kelani River
C) Mahaweli River
D) Walawe River
Answer: B) Kelani River - The Mahaweli River is significant for which type of development?
A) Industrial
B) Agricultural
C) Urban
D) Tourism
Answer: B) Agricultural - Which river is known for the Victoria Dam?
A) Mahaweli River
B) Kalu River
C) Walawe River
D) Kelani River
Answer: A) Mahaweli River - Which river is considered the second longest in Sri Lanka?
A) Kalu River
B) Kelani River
C) Walawe River
D) Gin River
Answer: B) Kelani River - The Walawe River primarily flows through which province?
A) Western Province
B) Southern Province
C) Central Province
D) Uva Province
Answer: B) Southern Province - What is the main use of the rivers in Sri Lanka?
A) Transportation
B) Irrigation
C) Recreation
D) Fishing
Answer: B) Irrigation - The Kalu River originates from which mountain range?
A) Knuckles Range
B) Central Highlands
C) Adam’s Peak
D) Samanala Kanda
Answer: B) Central Highlands - Which river is known for its biodiversity and scenic beauty?
A) Mahaweli River
B) Kelani River
C) Walawe River
D) Gin River
Answer: B) Kelani River - The Gin River is located in which part of Sri Lanka?
A) Northern Province
B) Southern Province
C) Western Province
D) Central Province
Answer: B) Southern Province - Which river forms part of the border between Sri Lanka and India?
A) Mahaweli River
B) Kalu River
C) Walawe River
D) Nilwala River
Answer: D) Nilwala River - What is the primary tributary of the Mahaweli River?
A) Kalu River
B) Kelani River
C) Walawe River
D) Amban River
Answer: D) Amban River - The Kelani River is a major source of water for which city?
A) Kandy
B) Colombo
C) Galle
D) Jaffna
Answer: B) Colombo - Which river is known for its waterfalls, including the Dunhinda Falls?
A) Mahaweli River
B) Kelani River
C) Walawe River
D) Kalu River
Answer: A) Mahaweli River - The Nilwala River is significant for its impact on which region?
A) Western Province
B) Southern Province
C) Northern Province
D) Central Province
Answer: B) Southern Province - What is the primary environmental threat to rivers in Sri Lanka?
A) Flooding
B) Pollution
C) Deforestation
D) Drought
Answer: B) Pollution - Which river is known for the Mahoora Wildlife Sanctuary along its banks?
A) Mahaweli River
B) Walawe River
C) Gin River
D) Kelani River
Answer: B) Walawe River - The Uma Oya is a tributary of which river?
A) Kelani River
B) Mahaweli River
C) Walawe River
D) Kalu River
Answer: B) Mahaweli River - Which river is important for the irrigation of the dry zone in Sri Lanka?
A) Walawe River
B) Mahaweli River
C) Kelani River
D) Kalu River
Answer: B) Mahaweli River - What is the significance of the Victoria Reservoir?
A) Flood control
B) Hydro power generation
C) Tourism
D) All of the above
Answer: D) All of the above - Which river is primarily used for the cultivation of rice in Sri Lanka?
A) Kalu River
B) Mahaweli River
C) Gin River
D) Walawe River
Answer: B) Mahaweli River - The Walawe River is also known for which of the following?
A) Freshwater fishing
B) Irrigation of tea plantations
C) Boating activities
D) Wild elephant habitats
Answer: D) Wild elephant habitats - Which river is famous for the historic site of the Kothmale Reservoir?
A) Kelani River
B) Mahaweli River
C) Walawe River
D) Kalu River
Answer: B) Mahaweli River - The Kalu River is primarily used for which purpose?
A) Transport
B) Hydropower generation
C) Irrigation
D) Domestic water supply
Answer: C) Irrigation - Which river has a significant impact on the culture and livelihoods of the people living in its basin?
A) Kalu River
B) Mahaweli River
C) Kelani River
D) Gin River
Answer: B) Mahaweli River - What is the ecological importance of the Kelani River?
A) Biodiversity hotspot
B) Source of fishing
C) Recreational area
D) Urban water supply
Answer: A) Biodiversity hotspot - Which river flows through the town of Kandy?
A) Walawe River
B) Mahaweli River
C) Kalu River
D) Gin River
Answer: B) Mahaweli River - Which river is known for its historical importance during the British colonial period?
A) Kelani River
B) Mahaweli River
C) Walawe River
D) Kalu River
Answer: A) Kelani River - The Gin River is known for which feature?
A) Fishing
B) Waterfalls
C) Wildlife
D) Historical sites
Answer: B) Waterfalls - The Kalu River empties into which body of water?
A) Indian Ocean
B) Bay of Bengal
C) Arabian Sea
D) Atlantic Ocean
Answer: A) Indian Ocean
| River Name | Length | Location | Significance |
| Mahaweli River | Approx. 335 km | Flows through central and eastern Sri Lanka | Longest river, essential for agriculture and hydroelectric power. |
| Kelani River | Approx. 145 km | Flows through western Sri Lanka, including Colombo | Important for water supply and hydroelectric projects. |
| Walawe River | Approx. 129 km | Flows through southern Sri Lanka | Vital for irrigation, known for its biodiversity and wildlife. |
| Kalu River | Approx. 129 km | Flows through western Sri Lanka | Key for irrigation and hydroelectric power generation. |
| Gin River | Approx. 90 km | Flows through southern Sri Lanka | Known for scenic beauty and biodiversity, important for fishing. |
| Nilwala River | Approx. 90 km | Flows through southern Sri Lanka | Important for irrigation and as a water source for local communities. |
| Jaffna River | Approx. 40 km | Flows through the Northern Province | Significant for agriculture in the Jaffna Peninsula. |
| Amban River | Approx. 58 km | Flows through central Sri Lanka | A tributary of the Mahaweli River, supports irrigation. |
| Mahaweli Ganga | Approx. 65 km | Flows through central Sri Lanka | Important tributary of the Mahaweli River. |
| Kekirawa River | Approx. 30 km | Flows through central Sri Lanka | Supports local agriculture and irrigation. |