- What is the longest river in the Philippines? A) Cagayan River B) Mindanao River C) Pampanga River D) Pasig River Answer: A) Cagayan River
- Which river is known as the “River of Life” in the Philippines? A) Cagayan River B) Agno River C) Pasig River D) Pampanga River Answer: C) Pasig River
- What is the approximate length of the Cagayan River? A) 250 km B) 300 km C) 500 km D) 600 km Answer: D) 600 km
- The Mindanao River is primarily located in which region of the Philippines? A) Luzon B) Visayas C) Mindanao D) Palawan Answer: C) Mindanao
- Which river flows through the city of Manila? A) Cagayan River B) Pasig River C) Pampanga River D) Agno River Answer: B) Pasig River
- What is the significance of the Pampanga River? A) Major irrigation source B) Major transport route C) Flood control D) All of the above Answer: D) All of the above
- Which river is the main tributary of the Cagayan River? A) Chico River B) Agno River C) Ilog River D) Abra River Answer: A) Chico River
- What is the primary function of the Agno River? A) Flood control B) Irrigation C) Hydroelectric power D) All of the above Answer: D) All of the above
- Which river is known for the famous Pagsanjan Falls? A) Pasig River B) Cagayan River C) Pagsanjan River D) Mindanao River Answer: C) Pagsanjan River
- Which river serves as the main water source for the city of Dagupan? A) Agno River B) Pampanga River C) Cagayan River D) Mindanao River Answer: A) Agno River
- The Pasig River connects which two bodies of water? A) Laguna de Bay and Manila Bay B) Cagayan River and Mindanao River C) Agno River and Pampanga River D) Sulu Sea and Celebes Sea Answer: A) Laguna de Bay and Manila Bay
- What is the significance of the Rio Grande de Mindanao? A) Major irrigation source B) Important for fishing C) Key transport route D) All of the above Answer: D) All of the above
- Which river is the largest in the Visayas region? A) Cagayan River B) Iloilo River C) Pampanga River D) Mindanao River Answer: B) Iloilo River
- The Pampanga River is known for which major historical event? A) Battle of Pampanga B) Pampanga flood C) Eruption of Mount Pinatubo D) Construction of the Pampanga River Basin Answer: C) Eruption of Mount Pinatubo
- What is the primary use of the Cagayan River? A) Domestic water supply B) Irrigation C) Recreation D) All of the above Answer: D) All of the above
- Which river is famous for its scenic views and is a popular destination for rafting? A) Cagayan River B) Mindanao River C) Chico River D) Pagsanjan River Answer: D) Pagsanjan River
- What is the approximate length of the Mindanao River? A) 200 km B) 300 km C) 400 km D) 500 km Answer: C) 400 km
- Which river serves as a natural border between the provinces of Cagayan and Isabela? A) Abra River B) Cagayan River C) Pampanga River D) Agno River Answer: B) Cagayan River
- Which river is known for its unique biodiversity and is part of a protected area? A) Mindanao River B) Cagayan River C) Agno River D) Pasig River Answer: A) Mindanao River
- Which river flows into Manila Bay? A) Cagayan River B) Pasig River C) Mindanao River D) Pampanga River Answer: B) Pasig River
- The Ilog River is known for which agricultural activity? A) Rice farming B) Sugarcane farming C) Coconut farming D) Banana farming Answer: A) Rice farming
- What is the main environmental concern for rivers in the Philippines? A) Pollution B) Overfishing C) Deforestation D) All of the above Answer: D) All of the above
- Which river is known for its deep canyons and rapids? A) Cagayan River B) Mindanao River C) Pagsanjan River D) Abra River Answer: C) Pagsanjan River
- What is the source of the Cagayan River? A) Sierra Madre Mountains B) Cordillera Central C) Mindanao Mountains D) Palawan Mountains Answer: B) Cordillera Central
- Which river is considered sacred by some indigenous peoples in the Philippines? A) Pasig River B) Mindanao River C) Pampanga River D) Cagayan River Answer: B) Mindanao River
- The Rio Grande de Mindanao flows primarily through which region? A) Luzon B) Visayas C) Mindanao D) Palawan Answer: C) Mindanao
- Which river is the main source of irrigation for Central Luzon? A) Cagayan River B) Pampanga River C) Agno River D) Mindanao River Answer: B) Pampanga River
- What is the main challenge faced by the Pasig River? A) Deforestation B) Urbanization C) Flooding D) Overfishing Answer: B) Urbanization
- The Agno River is located in which part of the Philippines? A) Luzon B) Visayas C) Mindanao D) Palawan Answer: A) Luzon
- Which river has the largest watershed area in the Philippines? A) Cagayan River B) Mindanao River C) Pampanga River D) Pasig River Answer: A) Cagayan River
| River Name | Length | Origin | Major Features | Significance |
| Cagayan River | ~ 600 km | Cordillera Central | The longest river in the Philippines; flows north to the Luzon Strait | Vital for irrigation and transportation |
| Mindanao River | ~ 400 km | Central Mindanao | The largest river in Mindanao; known for its biodiversity | Important for agriculture and fishing |
| Pasig River | ~ 27 km | Laguna de Bay | Flows through Metro Manila; connects Laguna de Bay to Manila Bay | Crucial for urban water supply and transport |
| Pampanga River | ~ 250 km | Sierra Madre Mountains | Major river in Central Luzon; prone to flooding | Essential for irrigation and local agriculture |
| Agno River | ~ 200 km | Benguet Province | Flows through the provinces of Benguet and Pangasinan | Important for hydropower and agriculture |
| Iloilo River | ~ 14 km | Iloilo City | Known for its scenic views and historical significance | Supports local tourism and fishing |
| Chico River | ~ 149 km | Cordillera Central | A tributary of the Cagayan River; flows through the Cordilleras | Important for local irrigation and agriculture |
| Rio Grande de Mindanao | ~ 320 km | Central Mindanao | A key river in Mindanao; flows through several provinces | Important for agriculture and transportation |
| Sangay River | ~ 60 km | Mindanao | Flows into the Davao Gulf; known for its biodiversity | Supports local ecosystems and fisheries |
| Pagsanjan River | ~ 40 km | Laguna Province | Famous for Pagsanjan Falls and scenic boat rides | Popular tourist destination |