The Northern Plains are densely populated because the soil is very fertile due to alluvial deposits brought by rivers. Because of favourable climatic conditions, irrigation is possible, which makes agriculture easy. This makes it a suitable place for people to live and work.
The Gangetic Plain is known as the Food Bowl of India because it has a huge deposit of alluvial soil which is very fertile and suitable for agriculture. It is the most populous region in our country and produces a large amount of food crops.
A distributary is a small river that branches off from the main river when the sediments become very dense. These distributaries form a triangular piece of land before joining the sea, which is called a delta.