Answer:
I'd probably say monolithic domes for 4. They learned how to make a really strong large dome structure that could support a lot of its own weight. I'm not sure for 3 but maybe arches and columns.
Explanation:
Answer:
The Pecos Classification was the first scientific attempt to understand how the Anasazi cultures changed over time.
Explanation:
Answer:
Slavery has been abolished
The unions main goal was to keep the country United
