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Lake Biwa, located in Shiga Prefecture in west-central Honshu, stands as the largest freshwater lake in Japan. Stretching approximately 64 kilometers from north to south, it encompasses an area of 672 square kilometers. Its unique shape resembles the biwa, a traditional Japanese musical instrument, hence its name.
Believed to be one of the oldest lakes globally, Lake Biwa has a rich geological history, dating back at least four million years. Recent archaeological findings have shed light on its importance, as researchers discovered a remarkably well-preserved pottery vessel, dating back over 10,000 years. This ancient relic highlights the lake's historical significance and its role in the development of early human civilization in the region.
The lake is situated within a structural depression, fed by various small rivers originating from the surrounding mountains. Its sole outlet, the Yodo River, flows from the lake’s southern tip, meandering southwest towards Ōsaka Bay. This hydrological connection plays a crucial role in the ecological balance of the region.
Lake Biwa serves as a vital breeding ground for various freshwater fish species, including trout. Its diverse aquatic ecosystem supports a pearl culture industry, contributing significantly to the local economy. Moreover, the lake’s waters are essential for the cities of Kyōto and Ōtsu, providing a reservoir that meets the needs of their populations.
In addition to its ecological significance, Lake Biwa holds cultural value. The region surrounding the lake is rich in history and tradition, attracting researchers, tourists, and locals alike. Its resources support nearby textile industries, underscoring the lake's role as a cornerstone of economic activity in the area.
Lake Biwa is not merely a geographical feature; it is a testament to Japan's natural heritage and history. The ongoing studies and discoveries in and around the lake continue to reveal its importance to both the environment and human civilization.
Q1. What is the significance of Lake Biwa in Japan?
Answer: Lake Biwa is Japan's largest freshwater lake, known for its ancient history, ecological importance, and role in local economies through fishing and pearl culture.
Q2. How old is Lake Biwa?
Answer: Lake Biwa is believed to be at least four million years old, making it one of the oldest lakes in the world.
Q3. What recent discovery was made at Lake Biwa?
Answer: Researchers recently uncovered a nearly intact pottery vessel dating over 10,000 years, highlighting the lake's historical significance.
Q4. What river serves as the outlet for Lake Biwa?
Answer: The Yodo River is the sole outlet of Lake Biwa, flowing southwest towards Ōsaka Bay.
Q5. How does Lake Biwa support local industries?
Answer: Lake Biwa supports local industries by providing freshwater resources for fishing, pearl culture, and serving as a reservoir for nearby cities.
Question 1: What is the primary ecological role of Lake Biwa?
A) To serve as a breeding ground for freshwater fish
B) To act as a reservoir for agriculture
C) To generate hydroelectric power
D) To provide recreational activities
Correct Answer: A
Question 2: Which river is the sole outlet of Lake Biwa?
A) Kamo River
B) Yodo River
C) Shinano River
D) Tama River
Correct Answer: B
Question 3: How long is Lake Biwa?
A) 50 km
B) 64 km
C) 70 km
D) 80 km
Correct Answer: B
Question 4: What ancient artifact was recently discovered in Lake Biwa?
A) Bronze tools
B) Jewelry
C) Pottery vessel
D) Stone carvings
Correct Answer: C
Question 5: Which city benefits from Lake Biwa as a water source?
A) Tokyo
B) Nagoya
C) Kyoto
D) Sapporo
Correct Answer: C
Question 6: What is the primary shape that Lake Biwa resembles?
A) Guitar
B) Flute
C) Biwa instrument
D) Drum
Correct Answer: C
Question 7: How does Lake Biwa contribute to the local economy?
A) By attracting tourists
B) Through fishing and pearl culture
C) By providing jobs in manufacturing
D) All of the above
Correct Answer: D
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