Industry Overview

Quiz

1. What is the only mineral commodity produced in every state in the union?

2. What material tends to be angular with sharp edges?

3. What material tends to be rounded with smooth edges?

4. How many crushed stone and sand and gravel operations are located in the United States?

5. Crushed stone can be made up of these three types of rock.

6. Where are sand and gravel generally found?

7. What percentage of crushed-stone material is used in the construction of roads, buildings and community infrastructure?

8. What transportation legislation did Congress pass in 2005 that authorizes $286 billion to be spent over six years?

9. What large material is used to prevent erosion along rivers and shorelines?

10. What is an integral part of the ongoing management of an aggregate operation after mining has been completed?

Quiz Answers

1. Aggregates

2. Crushed stone

3. Gravel

4. Approximately 10,000

5. Igneous, sedimentary and metamorphic

6. River and stream valleys and in ridges and hills

7. Between 70 and 85 percent

8. SAFETEA-LU

9. Rip-rap

10. Reclamation of the land