Which of the Following Is True About the Ancient Chacoan

question 18

Multiple Choice

Which of the following is true about the ancient Chacoan road system?

• A) Although once thought to be an extensive network of roads, aerial photography has shown the roads to be much less extensive than initially believed.
• B) Although once thought to be an extensive network of roads, aerial photography has shown that they were not roads, but were in fact part of a vast canal system.
• C) It was an elaborate and extensive network of roads, covering more than 250,000 square kilometers within New Mexico, Arizona, Colorado, and Utah.
• D) We now know that they were built strictly for economic purposes, to move goods to markets in Chaco Canyon.

---

Definitions:

Chlorine

A chemical element with symbol Cl and atomic number 17, known for its extensive use as a disinfectant and in the manufacture of various compounds.

Bromine

A dark red, volatile element of the halogen group, used in a variety of compounds and applications, including flame retardants and photography.

Reactive Intermediate Species

Highly reactive molecules or ions formed transiently in the course of a chemical reaction, which go on to react further to form the final products.

Sp3 Hybridization

A form of orbital hybridization in which one s orbital and three p orbitals mix to form four equivalent sp3 hybrid orbitals, typically found in tetrahedral molecular geometries.