Why are some cities located near river deltas so large?

Cities near river deltas tend to be large due to the fertile land and abundant water supply that support agriculture, enabling food production and trade. Deltas also serve as natural transportation hubs, facilitating commerce and connectivity via waterways. Additionally, these locations often attract diverse populations for economic opportunities, leading to urban growth and development over time. The combination of these factors creates a conducive environment for large urban centers to thrive.