Answer:
The Caddo changed their environment to fit their needs by building permanent homes and by doing farming.
Step-by-step explanation:
The Caddo were a dominant Native American tribe that resided in the regions covered by present-day Texas and Louisiana. They were one of the very first Native American tribes to settle down in one place by building permanent houses and carrying out agricultural activities in the neighboring regions. The Caddo are known for clearing lands for the purpose of farming.