| Answer | % Correct |
|---|---|
| Red River | 75%
|
| Rio Grande | 75%
|
| Canadian River | 60%
|
| Sabine River | 53%
|
| Pecos River | 47%
|
| Colorado River | 46%
|
| San Antonio River | 46%
|
| Brazos River | 44%
|
| Trinity River | 44%
|
| Nueces River | 38%
|
| Neches River | 37%
|
| Guadalupe River | 36%
|
| San Jacinto River | 35%
|