Lake Baikal Quiz

What makes Lake Baikal unique compared to other lakes?

• It is the largest lake by surface area.

• It has the most diverse fish species.

• It is the deepest lake in the world.

• It is the warmest lake in Siberia.

Which river is NOT one of the main contributors to Lake Baikal's water volume?

• Volga River

• Upper Angara River

• Bargusin River

• Selenga River

What geological process is primarily responsible for the formation of Lake Baikal?

• Human activity

• Plate tectonics

• Glacial retreat

• Volcanic eruptions

How old is Lake Baikal estimated to be?

• 70 million years

• 50 million years

• 25 to 30 million years

• 10 million years

What percentage of Lake Baikal's water budget is made up by inflows from streams and rivers?

• 65%

• 85%

• 95%

• 50%

What is the typical residence time of water in Lake Baikal?

• 100 years

• 200 years

• 300 years

• 400 years

What is a significant ecological feature of Lake Baikal's water?

• High phosphorus levels

• Low turbidity

• Low oxygen levels

• High nitrogen levels

What was a major environmental threat to Lake Baikal that was successfully rerouted?

• A mining operation

• A nuclear plant

• An oil pipeline

• A new dam

What has been a consequence of pollution in Lake Baikal?

• Increase in water temperature

• Decrease in water volume

• Expansion of putrid algae

• Increase in fish population

What is a key challenge for the future of Lake Baikal?

• Balancing prosperity and preservation

• Building more towns

• Increasing tourism

• Decreasing water levels