| A | B |
| What is the main difference between the Central Plains and the Great Plains? | Central Plains gets more precipitation |
| Why is prairie soil very fertile? | Prairie grasses left behind matter that enriched the soil |
| What is half of the Central Plains corn used for? | livestock food |
| What is the main result of a drought? | crops die |
| What type of storm in NOT likely to happen on the Interior Plains? | a hurricane |
| What did many settlers on the Great Plains build their home of because of lack of trees? | sod |
| What crop changed farming on the Great Plains? | winter wheat |
| What is one cause of urbanization? | farm families moving to the cities |
| How did early Texas ranchers get their cattle to cities in the East? | They drove heards north to the railroads |
| In a free enterprise economy, who usually decides what a factory will produce? | the owner of the factory |
| What does a fall in demand for a good or service lead to? | a fall in supply |
| What business is often found near cattle ranches? | meat-packing plants |
| What is always true for the plains regions? | Plains regions are mostly flat land. |
| What are most of the world's plains used for? | growing food |