- 1. The Acheloos River is the second longest river in Greece. Its delta is a significant ecological area. What is the primary ecological characteristic of the Acheloos River delta?
A) Volcanic activity
B) High mountain peaks
C) Arid desert
D) Wetlands and marshes
- 2. The Acheloos River delta is located in which part of Greece?
A) Southern Peloponnese
B) Eastern islands
C) Western mainland
D) Northern mountains
- 3. What is a major environmental concern impacting the Acheloos River delta?
A) Volcanic eruptions
B) Water abstraction for irrigation
C) Excessive rainfall
D) Tsunami threats
- 4. The Acheloos River delta is an important habitat for which type of wildlife?
A) Migratory birds
B) Desert lizards
C) Tropical monkeys
D) Arctic foxes
- 5. Which of the following is a common land use in the areas surrounding the Acheloos River delta?
A) Agriculture
B) Logging
C) Mining
D) Urbanization
- 6. The Acheloos delta is known for its unique geological formation. What is this formation?
A) Alluvial plain
B) Karst landscape
C) Canyon
D) Glacial valley
- 7. What is the main source of freshwater for the Acheloos River delta?
A) Rainfall and snowmelt from mountains
B) Desalinated seawater
C) Underground aquifers
D) Geothermal springs
- 8. The ecosystem of the Acheloos delta is sensitive to changes in water flow. What can happen if the water flow is significantly reduced?
A) Salinity intrusion and habitat degradation
B) Expansion of forests
C) Increased biodiversity
D) Formation of new islands
- 9. Which European environmental designation recognizes the ecological importance of the Acheloos River delta?
A) National Park status
B) UNESCO World Heritage site
C) Biosphere Reserve
D) Natura 2000 site
- 10. The sediment carried by the Acheloos River plays a crucial role in maintaining the delta. What does this sediment do?
A) Builds and nourishes the delta land
B) Pollutes the water
C) Causes soil infertility
D) Erodes the coastline
- 11. Which of the following is a threat to the plant life in the Acheloos River delta?
A) Heavy rainfall
B) Invasive species
C) Cold temperatures
D) Soil erosion
- 12. The Acheloos River delta is an important site for birdwatching. Which type of birds are particularly abundant there during certain seasons?
A) Waterfowl
B) Birds of prey
C) Forest birds
D) Desert birds
- 13. What is the name of the body of water that the Acheloos River flows into at its delta?
A) Mediterranean Sea
B) Aegean Sea
C) Ionian Sea
D) Adriatic Sea
- 14. The delta's ecosystem provides a nursery ground for many marine species. Which important marine life form benefits from this?
A) Dolphins
B) Fish
C) Sharks
D) Whales
- 15. Historically, the course of the Acheloos River has changed. What has been a major factor in this change?
A) Tectonic plate movement
B) Natural deposition of sediment
C) Volcanic activity
D) Glacial erosion
- 16. What human activity can lead to the loss of deltaic wetlands?
A) Drainage for construction or agriculture
B) Creating artificial lakes
C) Restoring natural habitats
D) Planting native trees
- 17. The vegetation in the Acheloos delta is adapted to what type of conditions?
A) Dry, sandy soil
B) Arid climate
C) Waterlogged soil and brackish water
D) High altitudes
- 18. Which of the following is a direct consequence of dam construction upstream on the Acheloos River?
A) Stabilization of the delta coastline
B) Reduced sediment flow to the delta
C) Enhanced biodiversity in the delta
D) Increased freshwater flow to the delta
- 19. The Acheloos River delta plays a role in coastal protection. How does it contribute?
A) Forms a steep cliff face
B) Increases coastal erosion
C) Acts as a natural buffer against erosion
D) Diverts ocean currents
- 20. What is a significant socio-economic benefit derived from the Acheloos River delta area?
A) Industrial manufacturing
B) Mining operations
C) Nuclear power generation
D) Fisheries and aquaculture
- 21. The ecological health of the Acheloos delta is closely linked to the health of which specific marine ecosystem?
A) Coral reefs
B) Seagrass meadows
C) Deep-sea trenches
D) Open ocean gyres
- 22. What type of soil is characteristic of the Acheloos River delta?
A) Volcanic soil
B) Clay soil
C) Alluvial soil
D) Sandy soil
- 23. The Acheloos River delta faces challenges from coastal erosion. What is a primary cause of this erosion?
A) Natural deposition of sand
B) Increased freshwater input
C) Planting of coastal vegetation
D) Reduced sediment supply from the river
- 24. Which of the following is a protected area within or adjacent to the Acheloos River delta, aimed at conserving its biodiversity?
A) Pindus National Park
B) Olympus National Park
C) National Park of the Echinades Islands
D) Samaria Gorge National Park
- 25. Conservation efforts in the Acheloos River delta often focus on managing which critical resource?
A) Air quality
B) Wind patterns
C) Freshwater availability
D) Seawater temperature
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