| Answer | Crossword Clue |
|---|---|
| washout | an erosion of earth by water |
| washouts | WASHOUT, an erosion of earth by water |
| aproned | shield (as of concrete or gravel) to protect against erosion (as of a waterway) by water |
| potholes | A deep natural underground cavity formed by the erosion of rock, esp. by the action of water |
| sinkhole | A cavity in the ground, esp. in limestone bedrock, caused by water erosion and providing a route for surface water to disappear underground |
| sinkholes | A cavity in the ground, esp. in limestone bedrock, caused by water erosion and providing a route for surface water to disappear underground |
