Deltas in the world

Deltas are landforms that develop where a river meets a body of water, like an ocean or a lake. As the river slows down, it drops sediments—particles of sand, silt, and clay—creating new land. Over time, these sediments build up to form a delta, which can resemble a fan, a bird’s foot, or a palm branch. Deltas are rich ecosystems, supporting diverse plants and animals, and are often fertile grounds for agriculture. They also act as natural buffers, protecting inland areas from flooding while serving as vital habitats and transport routes.