In Which Region did the Caddo Tribe Live? -Mountain and Basins
-Great Plains
-North Central Plains
-Coastal Plains

Great Plains

Explanation:

The Caddos came to East Texas from the Mississippi Valley around 800 A.D. Their territory included parts of Oklahoma, Arkansas, Louisiana and East Texas. Oklahoma lies within North America's Interior Plains Province

union blockade

explanation:

the union blockade in the american civil war was a naval strategy by the united states to prevent the confederacy from trading.

the blockade was proclaimed by president abraham lincoln in april 1861, and required the monitoring of 3,500 miles (5,600 km) of atlantic and gulf coastline, including 12 major ports, notably new orleans and mobile. those blockade runners fast enough to evade the union navy could only carry a small fraction of the supplies needed. they were operated largely by british citizens, making use of neutral ports such as havana, nassau and bermuda. the union commissioned around 500 ships, which destroyed or captured about 1,500 blockade runners over the course of the war.