| A | B |
| Every 24 hours Earth completes one | rotation |
| The collision of two continental plates results in | mountains |
| Water shortages can result from | drought |
| Which of the following creates Earth's change in seasons | tilt |
| Most of Earth's available freshwater is stored | underground |
| Earth's glaciers can cause | erosion |
| Earth's landforms include mountains valleys and | peninsulas |
| About 3 percent of Earth's water supply is | fresh water |