Solution:Lake Balkhash is situated in east-central Kazakhstan. Lake Balkhash is the largest lake in central Asia and fifteenth largest in the world. The western part of the lake is relatively fresh, while the eastern part is saline. The Ili River is the primary inflow, bringing most of the water from the mountains of China's Xinjiang region. Other rivers like the Karatal, Aksu, Lepsy, Byan, Kapal, and Koksu also contribute to the lake's water supply.The lake's area varies significantly depending on the water balance, with fluctuations in water levels and the extent of the lake's surface area. The lake lies at an elevation of 341.4 meters (1,120 feet) above sea level. The lake freezes over from November to March. An important water body in Central Asia, supporting a rich aquatic ecosystem. The lake is home to a diverse range of aquatic flora and fauna, including a variety of bird species. The lake faces environmental challenges, including water pollution and changes in water levels due to human activities.