What are the two largest rivers in North America?

The two largest rivers in North America are the Mississippi River and the Missouri River. The Mississippi River is the country's second-longest river and runs through multiple states from northern Minnesota to the Gulf of Mexico. It plays a crucial role in the interior waterway system of the United States, influencing trade, agriculture, and ecosystems along its extensive route.

The Missouri River is the longest river in North America, flowing from the Rocky Mountains in western Montana to join the Mississippi River in St. Louis, Missouri. Together, these two rivers create the largest river system in the United States, providing vital habitats for wildlife, significant transportation routes, and essential resources for millions of people who live and work in their basins.

Other choices, such as the Rio Grande and Colorado River, while significant rivers, do not match the size and impact of the Mississippi and Missouri rivers. The Ohio River and Columbia River also fall short in terms of length and overall river system size compared to the top two. The last choice, featuring the Amazon and Nile Rivers, pertains to different continents and is therefore not relevant in the context of North America.