- What is the longest river in São Tomé and Príncipe?
A) The Rio Cão Grande
B) The Rio São Miguel
C) The Rio Agostinho Neto
D) The Rio Lembá
Answer: A) The Rio Cão Grande - Which river flows through the capital city of São Tomé?
A) The Rio São Miguel
B) The Rio Cão Grande
C) The Rio Lembá
D) The Rio Xufexufe
Answer: C) The Rio Lembá - Which river is known for its biodiversity?
A) The Rio Cão Grande
B) The Rio Agostinho Neto
C) The Rio São Miguel
D) The Rio Cacau
Answer: A) The Rio Cão Grande - What type of climate influences the rivers of São Tomé and Príncipe?
A) Tropical rainforest
B) Arid
C) Temperate
D) Mediterranean
Answer: A) Tropical rainforest - Which river is a major source of hydroelectric power in São Tomé and Príncipe?
A) The Rio Lembá
B) The Rio Cão Grande
C) The Rio São Miguel
D) The Rio Agostinho Neto
Answer: A) The Rio Lembá - What is the primary use of the water from the rivers in São Tomé and Príncipe?
A) Industrial use
B) Agricultural irrigation
C) Drinking water
D) Recreational activities
Answer: B) Agricultural irrigation - Which river is famous for its scenic waterfalls?
A) The Rio Cão Grande
B) The Rio São Miguel
C) The Rio Lembá
D) The Rio Xufexufe
Answer: C) The Rio Lembá - What is a significant environmental issue affecting the rivers of São Tomé and Príncipe?
A) Deforestation
B) Pollution
C) Invasive species
D) All of the above
Answer: D) All of the above - Which river is known for its rich fishing grounds?
A) The Rio Cão Grande
B) The Rio Agostinho Neto
C) The Rio São Miguel
D) The Rio Lembá
Answer: D) The Rio Lembá - What is the main tributary of the Rio Lembá?
A) The Rio São Miguel
B) The Rio Cão Grande
C) The Rio Xufexufe
D) The Rio Agostinho Neto
Answer: C) The Rio Xufexufe - Which river is the second longest in São Tomé and Príncipe?
A) The Rio Cão Grande
B) The Rio Agostinho Neto
C) The Rio Lembá
D) The Rio São Miguel
Answer: B) The Rio Agostinho Neto - What type of fish is commonly found in the rivers of São Tomé and Príncipe?
A) Trout
B) Tilapia
C) Catfish
D) Salmon
Answer: B) Tilapia - Which river is primarily used for tourism activities?
A) The Rio Cão Grande
B) The Rio Lembá
C) The Rio São Miguel
D) The Rio Agostinho Neto
Answer: B) The Rio Lembá - Which river flows into the Atlantic Ocean?
A) The Rio Lembá
B) The Rio Cão Grande
C) The Rio São Miguel
D) The Rio Agostinho Neto
Answer: B) The Rio Cão Grande - What is the ecological significance of the rivers in São Tomé and Príncipe?
A) Transportation
B) Habitat for wildlife
C) Drinking water supply
D) Recreation
Answer: B) Habitat for wildlife - Which river has faced challenges due to urbanization?
A) The Rio Lembá
B) The Rio Cão Grande
C) The Rio São Miguel
D) The Rio Agostinho Neto
Answer: A) The Rio Lembá - Which river is a key feature in local folklore?
A) The Rio Agostinho Neto
B) The Rio Cão Grande
C) The Rio Lembá
D) The Rio São Miguel
Answer: B) The Rio Cão Grande - What is the main threat to the rivers of São Tomé and Príncipe?
A) Drought
B) Pollution
C) Overfishing
D) Climate change
Answer: B) Pollution - Which river supports local agriculture in São Tomé and Príncipe?
A) The Rio São Miguel
B) The Rio Cão Grande
C) The Rio Agostinho Neto
D) The Rio Lembá
Answer: D) The Rio Lembá - Which river is known for its lush green surroundings?
A) The Rio Agostinho Neto
B) The Rio Lembá
C) The Rio São Miguel
D) The Rio Cão Grande
Answer: B) The Rio Lembá - What is the average annual rainfall affecting river flow in São Tomé and Príncipe?
A) 1,000 mm
B) 2,500 mm
C) 3,000 mm
D) 4,500 mm
Answer: B) 2,500 mm - Which river is crucial for maintaining local ecosystems?
A) The Rio Cão Grande
B) The Rio Lembá
C) The Rio São Miguel
D) The Rio Agostinho Neto
Answer: A) The Rio Cão Grande - Which river is primarily used for domestic water supply?
A) The Rio Lembá
B) The Rio Cão Grande
C) The Rio São Miguel
D) The Rio Agostinho Neto
Answer: A) The Rio Lembá - Which river is important for local cultural practices?
A) The Rio Cão Grande
B) The Rio São Miguel
C) The Rio Lembá
D) The Rio Agostinho Neto
Answer: C) The Rio Lembá - Which river is often referred to as the lifeblood of São Tomé and Príncipe?
A) The Rio São Miguel
B) The Rio Cão Grande
C) The Rio Lembá
D) The Rio Agostinho Neto
Answer: C) The Rio Lembá - What type of ecological issue is faced by the rivers of São Tomé and Príncipe?
A) Water scarcity
B) Invasive species
C) Overfishing
D) All of the above
Answer: D) All of the above - Which river contributes to the hydroelectric projects in São Tomé and Príncipe?
A) The Rio Cão Grande
B) The Rio Lembá
C) The Rio São Miguel
D) The Rio Agostinho Neto
Answer: B) The Rio Lembá - Which river is known for its beautiful landscapes?
A) The Rio Cão Grande
B) The Rio Lembá
C) The Rio São Miguel
D) The Rio Agostinho Neto
Answer: B) The Rio Lembá - Which river is significant for maintaining the balance of local wildlife?
A) The Rio São Miguel
B) The Rio Lembá
C) The Rio Agostinho Neto
D) The Rio Cão Grande
Answer: D) The Rio Cão Grande - What is the primary ecological role of the rivers in São Tomé and Príncipe?
A) Transportation
B) Habitat for wildlife
C) Water supply
D) Recreation
Answer: B) Habitat for wildlife
| River Name | Length (km) | Region | Major Tributaries | Significance |
| Rio Cão Grande | 60 | São Tomé Island | None | Longest river, important for biodiversity. |
| Rio Lembá | 50 | São Tomé Island | Rio Xufexufe | Main source of hydroelectric power. |
| Rio Agostinho Neto | 30 | São Tomé Island | None | Important for local agriculture. |
| Rio São Miguel | 40 | São Tomé Island | None | Known for scenic views. |
| Rio Cacau | 25 | São Tomé Island | None | Important for cocoa production. |
| Rio Pagué | 20 | Príncipe Island | None | Significant for fishing activities. |
| Rio Bom Bom | 15 | Príncipe Island | None | Notable for local tourism. |
| Rio Porto Real | 10 | Príncipe Island | None | Important for local communities. |