| A | B |
| a huge mass of slow moving ice | glacier |
| large boulders dropped by a glacier | erratics |
| a glacier moves rock and soil like a | bulldozer |
| Weathering of rocks is most often caused by | plant's roots |
| the main force that makes glaciers move | gravity |
| a river and the waterways that drain into it | river system |
| the triangular-shaped deposit formed when a river empties into an ocean | delta |
| when moving water, wind, and ice pick up and carry soil and other materials | erosion |
| materials such as soil and gravel that are carried by moving water, wind, or ice | sediments |
| rocks are broken into smaller pieces | weathering |