1. Which river is the longest in the United States?
A) Mississippi River
B) Missouri River
C) Colorado River
D) Columbia River
Answer: B) Missouri River
2. Which river flows through the Grand Canyon?
A) Colorado River
B) Mississippi River
C) Rio Grande
D) Columbia River
Answer: A) Colorado River
3. Which river is known as the “Mighty Mississippi”?
A) Ohio River
B) Mississippi River
C) Missouri River
D) Arkansas River
Answer: B) Mississippi River
4. Which major river flows through New York City?
A) Ohio River
B) Potomac River
C) Hudson River
D) Delaware River
Answer: C) Hudson River
5. Which river forms part of the border between the USA and Mexico?
A) Rio Grande
B) Mississippi River
C) Colorado River
D) Arkansas River
Answer: A) Rio Grande
6. Which river is the primary source of water for much of the southwestern United States?
A) Missouri River
B) Rio Grande
C) Colorado River
D) Columbia River
Answer: C) Colorado River
7. Which river is the longest in the state of Texas?
A) Rio Grande
B) Colorado River
C) Brazos River
D) Red River
Answer: A) Rio Grande
8. Which river flows through the city of St. Louis?
A) Mississippi River
B) Ohio River
C) Missouri River
D) Arkansas River
Answer: A) Mississippi River
9. Which river is known for the famous “River Walk” in San Antonio, Texas?
A) Rio Grande
B) San Antonio River
C) Colorado River
D) Brazos River
Answer: B) San Antonio River
10. Which river is the principal river in the state of New Mexico?
A) Rio Grande
B) Colorado River
C) Arkansas River
D) Pecos River
Answer: A) Rio Grande
11. Which river is famous for its waterfalls in the state of New York?
A) Hudson River
B) St. Lawrence River
C) Niagara River
D) Allegheny River
Answer: C) Niagara River
12. Which river is the primary river of the central United States and flows into the Gulf of Mexico?
A) Colorado River
B) Missouri River
C) Mississippi River
D) Arkansas River
Answer: C) Mississippi River
13. Which river forms part of the boundary between the states of Ohio and West Virginia?
A) Potomac River
B) Ohio River
C) Kanawha River
D) Allegheny River
Answer: B) Ohio River
14. Which river is the longest in the state of Florida?
A) St. Johns River
B) Suwannee River
C) Apalachicola River
D) St. Mary’s River
Answer: A) St. Johns River
15. Which river is known for forming the natural boundary between the states of Kentucky and Tennessee?
A) Ohio River
B) Tennessee River
C) Cumberland River
D) Mississippi River
Answer: A) Ohio River
16. Which river is a major tributary of the Mississippi River and flows through the state of Iowa?
A) Missouri River
B) Ohio River
C) Illinois River
D) Arkansas River
Answer: C) Illinois River
17. Which river is the main river system of the Pacific Northwest?
A) Columbia River
B) Snake River
C) Colorado River
D) Missouri River
Answer: A) Columbia River
18. Which river is the primary water source for the city of Las Vegas, Nevada?
A) Colorado River
B) Rio Grande
C) Snake River
D) Columbia River
Answer: A) Colorado River
19. Which river is known for its large basin and flowing through the central and southern parts of the United States?
A) Colorado River
B) Mississippi River
C) Columbia River
D) Rio Grande
Answer: B) Mississippi River
20. Which river runs through the state capital of Ohio?
A) Ohio River
B) Cuyahoga River
C) Scioto River
D) Muskingum River
Answer: C) Scioto River
21. Which river is a major tributary of the Mississippi River and flows through the state of Arkansas?
A) Red River
B) Missouri River
C) Ohio River
D) Arkansas River
Answer: D) Arkansas River
22. Which river forms part of the boundary between the states of Tennessee and North Carolina?
A) Tennessee River
B) Catawba River
C) French Broad River
D) Pigeon River
Answer: D) Pigeon River
23. Which river is known for the Great Salt Lake in Utah?
A) Colorado River
B) Snake River
C) Rio Grande
D) Bear River
Answer: D) Bear River
24. Which river flows through the city of Minneapolis and is known for its waterfalls?
A) Mississippi River
B) Minnesota River
C) St. Croix River
D) Missouri River
Answer: A) Mississippi River
25. Which river is known for the famous “Hoover Dam” built on it?
A) Colorado River
B) Rio Grande
C) Snake River
D) Columbia River
Answer: A) Colorado River
26. Which river runs through the city of Pittsburgh, Pennsylvania?
A) Ohio River
B) Allegheny River
C) Monongahela River
D) Susquehanna River
Answer: C) Monongahela River
27. Which river is known for the “Great Falls” in the state of Montana?
A) Missouri River
B) Yellowstone River
C) Clark Fork River
D) Flathead River
Answer: A) Missouri River
28. Which river is a major tributary of the Columbia River and flows through Idaho?
A) Snake River
B) Clearwater River
C) Salmon River
D) Bear River
Answer: A) Snake River
29. Which river is known for the “Seven Falls” in South Dakota?
A) Missouri River
B) Cheyenne River
C) White River
D) Bad River
Answer: A) Missouri River
30. Which river is known for its role in the Lewis and Clark Expedition?
A) Missouri River
B) Columbia River
C) Mississippi River
D) Snake River
Answer: A) Missouri River
31. Which river is known for the “Niagara Falls” between the United States and Canada?
A) Hudson River
B) Niagara River
C) St. Lawrence River
D) Columbia River
Answer: B) Niagara River
32. Which river is the primary source of water for the state of Kentucky?
A) Ohio River
B) Tennessee River
C) Cumberland River
D) Kentucky River
Answer: A) Ohio River
33. Which river is the primary river system for the state of Virginia?
A) Potomac River
B) James River
C) Rappahannock River
D) Shenandoah River
Answer: B) James River
34. Which river is known for its large delta in Louisiana?
A) Mississippi River
B) Red River
C) Ohio River
D) Arkansas River
Answer: A) Mississippi River
35. Which river is a major tributary of the Columbia River and flows through Washington State?
A) Snake River
B) Willamette River
C) Yakima River
D) Clark Fork River
Answer: B) Willamette River
36. Which river is known for its role in the development of the Midwest region of the United States?
A) Missouri River
B) Mississippi River
C) Ohio River
D) Illinois River
Answer: B) Mississippi River
37. Which river forms part of the border between New York and New Jersey?
A) Hudson River
B) Delaware River
C) Passaic River
D) Raritan River
Answer: B) Delaware River
38. Which river is known for its deep canyons and dramatic scenery in the state of Oregon?
A) Columbia River
B) Rogue River
C) Willamette River
D) Deschutes River
Answer: A) Columbia River
39. Which river is a major tributary of the Mississippi River and flows through the state of Missouri?
A) Ohio River
B) Missouri River
C) Arkansas River
D) Illinois River
Answer: B) Missouri River
40. Which river is known for its significant role in the history of the American West and the Oregon Trail?
A) Columbia River
B) Snake River
C) Colorado River
D) Missouri River
Answer: B) Snake River
41. Which river is the principal river of the state of Mississippi?
A) Mississippi River
B) Yazoo River
C) Pearl River
D) Tombigbee River
Answer: A) Mississippi River
42. Which river is known for its famous bridges and historical significance in San Francisco?
A) Sacramento River
B) San Francisco Bay
C) Golden Gate Strait
D) Bay Bridge
Answer: B) San Francisco Bay
43. Which river is a significant waterway for barge traffic in the Midwest?
A) Ohio River
B) Mississippi River
C) Missouri River
D) Illinois River
Answer: B) Mississippi River
44. Which river is known for its importance to the Native American tribes in the region?
A) Missouri River
B) Colorado River
C) Mississippi River
D) Columbia River
Answer: C) Mississippi River
45. Which river is the main source of water for the city of Denver, Colorado?
A) South Platte River
B) Arkansas River
C) Colorado River
D) Yampa River
Answer: A) South Platte River