What is the second longest river in North America?

http://en.wikipedia.org/wiki/List_of_rivers_by_length

Pay attention to the color code (lght blue).

Geographers consider river systems. The Mississippi-Missouri system is the longest river in North America. The MacKenzie-Peace system is second longest.

http://en.wikipedia.org/wiki/List_of_rivers_by_length

The second longest river in North America is the Yukon River. To find this information, you can:

1. Use an online search engine: Open a web browser and go to your preferred search engine (e.g., Google, Bing). Type in the question "What is the second longest river in North America?" and hit enter. The search results will display the name of the river.

2. Consult reference books or encyclopedias: Look for reference books or encyclopedias that cover North American geography. Find the section on rivers or specifically search for information about the longest rivers in North America. Look for the river's name in the relevant sections of the book or encyclopedia.

3. Use online resources specific to rivers: Go to websites that provide information on rivers or geography, such as the National Geographic website, the United States Geological Survey (USGS) website, or the Canadian Geographic website. Navigate to the section on North American rivers or search for information about the longest rivers. Look for the river's name in the provided information.

Remember to critically evaluate the sources you use to ensure they are reputable and reliable.