Answer:
People of the Puebloan culture live in adobe houses because trees were scarce.
Step-by-step explanation:
The excerpt shows an aspect of Puebloan culture: the housing culture. This housing culture emerged from necessity, because of the geography were these people inhabited.
Southwest and West Texas are very arid, with a landscape mostly composed of grasslands, shrubs, and even desert. In these places, trees are very hard to find, and the Puebloan culture had to rely on adobe to build their houses.