Hudson river is linked to Great Lakes through the Erie Canal.

Which river flows into the gulf of Mexico

1. Mississippi
2. Hudson
3. St. Lawrence
4. R. Ohio

Which of the following is not a mountain range in West Cordilleras?

1. Alaska
2. Cascade range
3. Sierra Nevada
4. Blue ridge

The Great Canyon is formed by

1. River Mississippi
2. River ohio
3. River Colorado
4. River St. Lawrence