Final answer:
The primary reason for establishing Catholic missions in Spanish Texas was to convert the Indians to Christianity.
Step-by-step explanation:
The primary reason for establishing Catholic missions in Spanish Texas was to convert the Indians to Christianity. True. The Catholic missionaries played a significant role in the Spanish colonization of the New World. They aimed to spread the teachings of Christianity and convert the indigenous people to the Catholic faith. By establishing missions, the missionaries provided education about Christianity, built churches, and incorporated native customs into religious practices, ultimately attempting to assimilate the indigenous population into the Spanish colonial society.