sentences:  The Son River is one of the widest rivers of the country and remains undried all year.So as the name suggests River Son = "sona" means "gold", it makes the people rich in terms of food and even enriching them in all aspects of life and is like a lifeline for the area.Son River is also one of the cleanest rivers till date in the entire world as there are no industries & major cities upstream of this river, so in one way this river also helps in terms of keeping a check on the Ganges pollution level, as this river merges with the Ganges near Patna for its final journey to the Bay of Bengal.