Colombo's northern edge is formed by the Kelani River, which meets the sea in a neighborhood called Modera, a Sinhala word for this geographic feature. Khulna sits within the Ganges version of the same feature, the world's largest of its kind. Which geographic feature is it?

Question

Accepted Answer

river delta. A river delta is the landform where a river fans out and deposits sediment as it meets a lake or sea. The Kelani in Colombo forms a small one, while Khulna sits inside the vast Ganges-Brahmaputra delta shared between Bangladesh and India.