- 1. Lake Baikal, located in southern Siberia, is the world's deepest and oldest freshwater lake. It is also the largest by volume, holding approximately 20% of the world's unfrozen freshwater. The lake is renowned for its crystal-clear waters, which freeze over in the winter, creating a stunning ice formation that can be several feet thick. Lake Baikal is home to a unique ecosystem, with thousands of plant and animal species found nowhere else on Earth. Visitors can explore the lake's rugged cliffs, sandy beaches, and thousands of small islands while enjoying breathtaking views of the surrounding mountains. The area is also rich in cultural history, with indigenous Buryat people living in the region for centuries and numerous archaeological sites scattered around the lake's shores. Lake Baikal truly is a wonder of nature, offering visitors a once-in-a-lifetime experience in one of the most beautiful and pristine natural environments on the planet.
Where is Lake Baikal located?
A) Australia
B) Argentina
C) Alaska, USA
D) Siberia, Russia
- 2. Which of the following is true about Lake Baikal?
A) It is located in Africa.
B) It is a man-made lake.
C) It is the world's deepest and oldest freshwater lake.
D) It is the smallest lake in Asia.
- 3. What makes Lake Baikal uniquely clear and pure?
A) High pollution levels
B) Fish population
C) Low human impact and high oxygen levels
D) Geothermal activity
- 4. What is the island at the northern end of Lake Baikal called?
A) Bear Island
B) Olkhon Island
C) Siberian Island
D) Dragon Island
- 5. Lake Baikal is a UNESCO World Heritage Site, since which year?
A) 1980
B) 2010
C) 1996
D) 2005
- 6. What proportion of the world's unfrozen freshwater does Lake Baikal hold?
A) 50%
B) 20%
C) 5%
D) 10%
- 7. Which continent is Lake Baikal situated on?
A) Asia
B) South America
C) Africa
D) Europe
- 8. What is the primary outflow of Lake Baikal?
A) Angara River
B) Lena River
C) Irkut River
D) Yenisei River
- 9. What is the length of Lake Baikal?
A) 636 kilometers
B) 1,000 kilometers
C) 300 kilometers
D) 800 kilometers
- 10. What is the largest tributary of Lake Baikal?
A) Little Sea River
B) Selenga River
C) Upper Angara River
D) Uda River
- 11. Approximately how old is Lake Baikal?
A) 5 million years
B) 100 million years
C) 10,000 years
D) 25 million years
- 12. What is the primary human activity around Lake Baikal?
A) Tourism
B) Logging
C) Agriculture
D) Fishing
- 13. What unique species of seal can be found in Lake Baikal?
A) Baikal seal
B) Harp seal
C) Leopard seal
D) Monk seal
- 14. What is the primary geological feature of Lake Baikal?
A) Volcano
B) Cave system
C) Canyon
D) Rift valley
- 15. What is the volume of water in Lake Baikal?
A) 23,600 cubic kilometers
B) 10,000 cubic kilometers
C) 50,000 cubic kilometers
D) 30,000 cubic kilometers
- 16. How many islands are there in Lake Baikal?
A) 50
B) 27
C) 10
D) 75
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