- What is the longest river in Portugal?
A) Douro River
B) Tejo River
C) Guadiana River
D) Mondego River
Answer: B) Tejo River - Which river flows through the city of Lisbon?
A) Douro River
B) Tejo River
C) Guadiana River
D) Sado River
Answer: B) Tejo River - The Douro River is famous for producing which type of wine?
A) White wine
B) Red wine
C) Port wine
D) Rosé wine
Answer: C) Port wine - Which river forms part of the border between Portugal and Spain?
A) Tejo River
B) Douro River
C) Guadiana River
D) Mondego River
Answer: C) Guadiana River - What is the primary tributary of the Douro River?
A) Tejo River
B) Sabor River
C) Mondego River
D) Zêzere River
Answer: B) Sabor River - Which river is known for its scenic beauty and historic vineyards?
A) Tejo River
B) Douro River
C) Guadiana River
D) Sado River
Answer: B) Douro River - What is the second longest river in Portugal?
A) Tejo River
B) Douro River
C) Guadiana River
D) Mondego River
Answer: C) Guadiana River - Which river flows into the Atlantic Ocean near the city of Setúbal?
A) Tejo River
B) Sado River
C) Douro River
D) Guadiana River
Answer: B) Sado River - Which river is associated with the famous University city of Coimbra?
A) Tejo River
B) Mondego River
C) Douro River
D) Guadiana River
Answer: B) Mondego River - The Sado River is known for which type of marine life?
A) Dolphins
B) Salmon
C) Eels
D) Trout
Answer: A) Dolphins - Which river is the largest in volume in Portugal?
A) Tejo River
B) Douro River
C) Guadiana River
D) Mondego River
Answer: A) Tejo River - What is the main environmental concern for rivers in Portugal?
A) Deforestation
B) Pollution
C) Flooding
D) Drought
Answer: B) Pollution - Which river has its source in the Serra da Estrela mountains?
A) Tejo River
B) Douro River
C) Mondego River
D) Guadiana River
Answer: C) Mondego River - Which river is known for the beautiful Alqueva Dam?
A) Tejo River
B) Douro River
C) Guadiana River
D) Sado River
Answer: C) Guadiana River - What is the main use of the Tejo River?
A) Agriculture
B) Hydroelectric power
C) Transportation
D) All of the above
Answer: D) All of the above - Which river is a popular spot for white-water rafting in Portugal?
A) Tejo River
B) Douro River
C) Mondego River
D) Guadiana River
Answer: C) Mondego River - The Guadiana River flows through which Portuguese region?
A) Alentejo
B) Algarve
C) Douro Valley
D) Beira
Answer: A) Alentejo - Which river is home to the historical city of Porto?
A) Tejo River
B) Douro River
C) Mondego River
D) Guadiana River
Answer: B) Douro River - **The Douro River is primarily known for its: **
A) Natural resources
B) Agricultural land
C) Vineyards and wine production
D) Industrial activity
Answer: C) Vineyards and wine production - Which river is the main water source for Lisbon?
A) Tejo River
B) Douro River
C) Guadiana River
D) Mondego River
Answer: A) Tejo River - Which river was crucial for the maritime exploration during the Age of Discoveries?
A) Douro River
B) Tejo River
C) Guadiana River
D) Mondego River
Answer: B) Tejo River - What is a significant ecological feature of the Sado River?
A) Natural parks
B) Wetlands
C) Industrial areas
D) Urban zones
Answer: B) Wetlands - Which river is known for its meandering paths and scenic beauty?
A) Tejo River
B) Guadiana River
C) Douro River
D) Mondego River
Answer: B) Guadiana River - Which river does the historic town of Belém overlook?
A) Tejo River
B) Douro River
C) Sado River
D) Mondego River
Answer: A) Tejo River - The Mondego River is significant for which type of sport?
A) Surfing
B) Fishing
C) Sailing
D) Canoeing
Answer: D) Canoeing - Which river is the principal source of freshwater for several municipalities in Portugal?
A) Tejo River
B) Guadiana River
C) Douro River
D) Sado River
Answer: A) Tejo River - The Sado River is notable for the presence of which marine mammal?
A) Sea lions
B) Dolphins
C) Whales
D) Sharks
Answer: B) Dolphins - Which river’s valley is known as the “Douro Valley”?
A) Tejo River
B) Guadiana River
C) Douro River
D) Mondego River
Answer: C) Douro River - Which river is considered a national symbol of Portugal?
A) Guadiana River
B) Douro River
C) Tejo River
D) Mondego River
Answer: C) Tejo River - What is the primary threat to the biodiversity of rivers in Portugal?
A) Overfishing
B) Urbanization
C) Pollution
D) Deforestation
Answer: C) Pollution
| River Name | Length | Origin | Major Features | Significance |
| Tejo River | ~ 1,007 km | Serra da Estrela | Longest river in Portugal; flows into the Atlantic Ocean at Lisbon | Vital for transportation, irrigation, and hydropower |
| Douro River | ~ 897 km | Sierra de la Roca | Known for its vineyards; flows through Porto, famous for Port wine | Important for wine production and tourism |
| Guadiana River | ~ 744 km | Sierra de Cuenca | Forms part of the border with Spain; flows into the Atlantic Ocean | Key for agriculture and water supply |
| Mondego River | ~ 234 km | Serra da Estrela | Flows through Coimbra; known for its natural beauty | Significant for recreation and irrigation |
| Sado River | ~ 180 km | Serra da Arrábida | Flows into the Atlantic near Setúbal; known for its dolphin population | Important for fishing and local ecology |
| Zêzere River | ~ 130 km | Serra da Estrela | A tributary of the Tejo; known for its scenic landscapes | Crucial for hydropower and agriculture |
| Cávado River | ~ 112 km | Serra do Gerês | Flows through Braga; known for its beauty and tourism potential | Supports agriculture and local communities |
| Tâmega River | ~ 130 km | Serra do Alvão | A tributary of the Douro; important for hydropower | Supports agriculture and regional ecosystems |
| Bastão River | ~ 50 km | Mountains of Funchal | Flows through Madeira; significant for local ecosystems | Important for biodiversity and agriculture |
| Paiva River | ~ 107 km | Serra de Montemuro | Known for its natural beauty; a tributary of the Douro | Popular for recreational activities and tourism |