Question 88 (2008): Name one of the two longest rivers in the United States.
This question is only on the 2008 test (N-400 filed before October 20, 2025); it's not on the 2025 list.
Official answers (any one counts)
- Missouri (River)
- Mississippi (River)
Grandpa explains
The Missouri and the Mississippi are the two longest, kiddo. They meet near St. Louis.
Same topic (2008)
- 89What ocean is on the West Coast of the United States?
- 90What ocean is on the East Coast of the United States?
- 91Name one U.S. territory.
- 92Name one state that borders Canada.
- 93Name one state that borders Mexico.
- 94What is the capital of the United States?
Official sources:
- USCIS · 100 Civics Questions and Answers (2008 version) ↗ · checked October 6, 2026