The correct answer is (b). The glacial lake Itasca is the source of the Mississippi River. The Mississippi River is the second longest river in the United States, after the Missouri River. It flows from Lake Itasca in Minnesota to the Gulf of Mexico. The Mississippi River is a major transportation route and a source of water for irrigation and drinking water.
The Missouri River is the longest river in the United States, flowing from Three Forks, Montana to St. Louis, Missouri, where it joins the Mississippi River. The Missouri River is a major transportation route and a source of water for irrigation and drinking water.
The Rio Grande is the second longest river in Mexico, after the RÃo Bravo del Norte. It flows from Colorado to the Gulf of Mexico. The Rio Grande is a major transportation route and a source of water for irrigation and drinking water.
The Red River is a river that flows from western Minnesota to the Gulf of Mexico. It is the border between the states of Minnesota and North Dakota, and the states of Oklahoma and Texas. The Red River is a major transportation route and a source of water for irrigation and drinking water.