Name the delta formed by the Ganga and the Brahmaputra.

The delta formed by the Ganga and Brahmaputra rivers is known as the Sundarbans Delta. The Sundarbans is the largest mangrove forest in the world and is situated in the southern part of Bangladesh and the eastern part of India. This delta is a vast and dynamic ecosystem characterized by a network of waterways, mudflats, and small islands, making it an important and unique ecological region.

The Sundarbans Delta is home to a diverse range of flora and fauna, including the Bengal tiger, various species of deer, crocodiles, and numerous bird species. The mangrove forests in the delta play a crucial role in protecting the coastline from erosion and provide a vital habitat for marine life. The delta is also economically important for the local communities who rely on its resources for their livelihoods.