How did chief pontiac unite the native americans in the great lake region?
a. he signed treaties
b. he attacked local settlers
c. he created an alliance
d. he captured fort pitt

Chief Pontiac formed a league of different tribes to form an alliance.  They would defend each other.  It was called the Iroquois League. Pontiac's alliance suffered a major defeat in the French and Indian War and soon after, it collapsed.

Texas’ gulf coastal plains are the western extension of the coastal plain extending from the atlantic ocean to beyond the rio grande. its characteristic rolling to hilly surface covered with a heavy growth of pine and hardwoods extends into east texas. in the increasingly arid west, however, its forests become secondary in nature, consisting largely of post oaks and, farther west, prairies and brushlands.