- 1. Which of the following lakes is Lake Ohrid often compared to for its ecological importance?
A) Lake Baikal
B) Lake Victoria
C) Lake Tahoe
D) Crater Lake
- 2. How deep is Lake Ohrid at its maximum depth?
A) 213 meters
B) 288 meters
C) 451 meters
D) 110 meters
- 3. When was the Lake Ohrid region declared a UNESCO World Heritage site?
A) 2004
B) 1979
C) 2011
D) 1995
- 4. Which fish species is endemic to Lake Ohrid?
A) Salmon
B) Ohrid trout
C) Grouper
D) Bass
- 5. What is the primary outflow of Lake Ohrid?
A) Neretva River
B) Vardar River
C) Vjosa River
D) Black Drin River
- 6. Lake Ohrid is known for its high level of what?
A) Temperature
B) Biodiversity
C) Salinity
D) Pollution
- 7. What is the primary source of income for the local population around Lake Ohrid?
A) Fishing
B) Farming
C) Tourism
D) Manufacturing
- 8. What is the name of the nearby Lake that is connected to Lake Ohrid by an underground river?
A) Lake Biwa
B) Lake Prespa
C) Lake Geneva
D) Lake Titicaca
- 9. Which countries does Lake Ohrid straddle?
A) Montenegro and Croatia
B) Serbia and Kosovo
C) North Macedonia and Albania
D) Bulgaria and Greece
- 10. How many endemic species does Lake Ohrid have?
A) 100
B) More than 200
C) 300
D) 50
- 11. Which of the following lakes was named after Lake Ohrid by NASA?
A) The Dead Sea
B) Lake Baikal
C) Lake Titicaca
D) One of Titan's lakes
- 12. What year did Albania's side of Lake Ohrid receive UNESCO World Heritage status?
A) 1980
B) 2019
C) 1979
D) 2014
- 13. Which park in North Macedonia includes a portion of the lakeside of Lake Ohrid?
A) Skopje City Park
B) Pelister National Park
C) Mavrovo National Park
D) Galičica National Park
- 14. What is the length of Lake Ohrid?
A) 40 km
B) 30.4 km
C) 50 km
D) 20 km
- 15. Which town in Albania is situated at the lakeside of Lake Ohrid?
A) Tirana
B) Shkodra
C) Durres
D) Pogradec
- 16. What percentage of Lake Ohrid's shoreline is within North Macedonia?
A) 50%
B) 70%
C) 64%
D) 36%
- 17. Which tectonic event occurred around 6 million years ago affecting the area of Lake Ohrid?
A) Transition from compressional to extensional tectonics
B) Development of river deltas
C) Formation of volcanic islands
D) Creation of mountain ranges
- 18. What is the estimated volume of water in Lake Ohrid?
A) 55.49 cubic kilometers
B) 45 cubic kilometers
C) 30 cubic kilometers
D) 70 cubic kilometers
- 19. What is the hydraulic residence time scale of Lake Ohrid?
A) ~70 years
B) ~30 years
C) ~100 years
D) ~50 years
- 20. Which geological feature is associated with Lake Ohrid's seismogenic landscape?
A) Glacial valleys
B) Fresh fault scarps
C) Volcanic craters
D) Sand dunes
- 21. What percentage of Lake Ohrid's inflow comes from underground springs on the eastern shore?
A) 25%
B) 10%
C) 75%
D) About 50%
- 22. In which direction does the surface water of Lake Ohrid predominantly move?
A) Clockwise
B) Counter-clockwise
C) Southward
D) Northward
- 23. What is the dominant process for vertical water exchange in Lake Ohrid during winter?
A) Convective mixing
B) Thermal stratification
C) River inflow
D) Tidal forces
- 24. Does Lake Ohrid undergo an annual deep water exchange?
A) Only during summer
B) Only during winter
C) Yes
D) No
- 25. Which wetland habitat near Lake Ohrid was drained for agriculture in the 1940s?
A) Ohrid Marsh
B) Studenchishte Marsh
C) Struga Marsh
D) Sateska Marsh
- 26. What is the size of the area recommended to be protected as a Natural Monument at Studenchishte Marsh?
A) 63.97 hectares
B) 75 hectares
C) 100 hectares
D) 50 hectares
- 27. When was Ramsar status formalized for Lake Ohrid and Studenchishte Marsh?
A) 2019
B) 2021
C) 2018
D) 2015
- 28. What is the impact of the European Corridor VIII railway on Struga Marsh?
A) Complete restoration achieved
B) No impact
C) Restoration enhanced
D) Potential restoration reduced
- 29. How many species of phytoplankton and sessile algae are endemic to Lake Ohrid?
A) 30 species
B) 20 species
C) 10 species
D) 15 species
- 30. Name an endemic plant species found in Lake Ohrid.
A) Chara ohridana
B) Nymphaea alba
C) Potamogeton crispus
D) Elodea canadensis
- 31. How many species of zooplankton are endemic to Lake Ohrid?
A) 3 species
B) 5 species
C) 10 species
D) 7 species
- 32. Which species is an example of a cyprinid fish from Lake Ohrid?
A) Pachychilon pictum
B) Cyprinus carpio
C) Gambusia affinis
D) Barbus barbus
- 33. What is the name of one of the endemic trout species in Lake Ohrid?
A) Salmo letnica
B) Salvelinus fontinalis
C) Oncorhynchus mykiss
D) Salmo trutta
- 34. How many species of endemic bottom fauna are found in Lake Ohrid?
A) 150 species
B) 200 species
C) 176 species
D) 100 species
- 35. What percentage of the freshwater gastropod fauna is endemic to Lake Ohrid?
A) 60%
B) 50%
C) 73.5%
D) 80%
- 36. How many species of freshwater snails are recorded from the Lake Ohrid basin?
A) 68 species
B) 50 species
C) 60 species
D) 75 species
- 37. How many introduced fish species are known from Lake Ohrid?
A) Ten
B) Three
C) Five
D) Seven
- 38. What percentage of native fish species in Lake Ohrid are endemic?
A) All
B) Two-thirds
C) Half
D) A third
- 39. Which bird is a rare and threatened species found in the lakeshore reed beds of Lake Ohrid?
A) Bald eagle
B) Dalmatian pelican
C) Peregrine falcon
D) Sparrowhawk
- 40. What designation has BirdLife International given to the Macedonian part of Lake Ohrid?
A) Protected Landscape
B) Important Bird Area (IBA)
C) Biosphere Reserve
D) World Heritage Site
- 41. Which bird species is supported by the Albanian part of Lake Ohrid?
A) Peregrine falcon
B) Bald eagle
C) Sparrowhawk
D) Common goldeneyes
- 42. What is the approximate population living directly at Lake Ohrid's shore?
A) 43,000 people
B) 88,000 people
C) 131,000 people
D) 170,000 people
- 43. By how much has the population in Lake Ohrid's catchment area increased over the last half century?
A) 200,000 people
B) 100,000 people
C) 50,000 people
D) 150,000 people
- 44. During which decade did over 200,000 tourists visit the Macedonian side of Lake Ohrid annually?
A) 2000s
B) 1970s
C) 1990s
D) 1980s
- 45. What historical route was close to Lake Ohrid?
A) The Trans-Siberian Railway
B) The Amber Road
C) The Via Egnatia
D) The Silk Road
- 46. Under which criterion is the Macedonian side of Lake Ohrid recognized as a World Heritage Site?
A) Criterion VII
B) Criterion I
C) Criterion IX
D) Criterion III
- 47. How many recommendations were devised for Macedonia by the 2017 mission report?
A) 19
B) 25
C) 10
D) 30
- 48. What was observed about the implementation of recommendations from the 2017 Reactive Monitoring Mission?
A) All were fully implemented
B) None were considered necessary
C) The majority had not been implemented
D) Only a few were partially implemented
- 49. What is the biggest source of phosphorus pollution currently affecting Lake Ohrid?
A) Household wastewater
B) Agricultural runoff from fields
C) Natural erosion of lakebed sediments
D) Industrial waste from factories
|