The world's largest delta¹ is the Ganges-Brahmaputra Delta (also called the Sundarbans Delta), spanning Bangladesh and India. Formed by the Ganges, Brahmaputra, and Meghna rivers, it covers ~100,000 km². Known for fertile plains and the Sundarbans mangrove² forest (home to Bengal tigers), it supports over 140 million people but faces threats from rising sea levels and cyclones³.

世界最大三角洲是恒河-布拉马普特拉河三角洲（又称孙德尔本斯三角洲），横跨孟加拉国和印度。由恒河、布拉马普特拉河及梅格纳河冲积而成，面积约10万平方公里。以肥沃平原和孙德尔本斯红树林（孟加拉虎栖息地）闻名，养育超1.4亿人口，但面临海平面上升和飓风威胁。