Becasue the river carries nutrient-rich sediment downstream from its source. This produces a very fertile medium for plants to grow in. Fish and animals are attracted to the plants as a food source - and predators will prey on those creatures.
The silt that carried by the river deposits casuing the marshland to be very fertile. :)
River brings different types of soil particles and manure , hence it is most fertile .
The most fertile soil is found around the Nile delta.
The most fertile area of Egypt is the Nile Delta. The Nile Delta, one of the world's largest deltas, is located where the Nile River spreads out and drains into the Mediterranean Sea.
Much of Egypt is arid. Its most fertile regions are either side of the River Nile, and in the Nile Delta on the Mediterranean coast.
Punjab
Some of the most fertile regions in the world include the Nile River Valley in Egypt, the Indo-Gangetic Plain in India, the Great Plains in the United States, and the Pampas in Argentina. These regions have nutrient-rich soil, adequate water supply, and favorable climate conditions for agriculture.
Most delta regions consist primarily of fish and waterfowl.
Most of it seemed fertile, however, most will probably say the Mekong Delta. But that region is extremely wet (seemingly flooded).
The Nile Valley: Egypt's main inhabited area. This fertile valley is a strip 7 to 9 miles wide along the Nile and some 6000 square miles in the Nile Delta. ...www.colostate.edu/orgs/ESA/general.html
The most fertile part of Egypt - see the link below.
Why did d most European explorer explore america
It is the most hospitable part of Egypt and the most fertile, therefore most live in or around it.
Most agriculture in China occurs in the regions of the North China Plain, the Middle-Lower Changjiang River (Yangtze River) Plain, and the Pearl River Delta. These regions are known for their fertile soil, favorable climate, and access to water resources, which are essential for successful agriculture.