| A | B |
|---|
| cover crops | plants that farmers plant in fields that aren’t being used to grow food. |
| sinkhole | a large hole formed when the roof of a cave collapses. |
| delta | an area of new land at the mouth of a river, formed from sediments carried by the river. |
| mouth | the place where a river empties into the ocean. |
| deposition | when sediment drops out of water. Ex) when the ocean drags more sand onto the beach. |
| erosion | the process of moving sediment by wind, moving water or ice |
| weathering | the process of wearing away rocks by natural means. |
| fault | a break in Earth’s crust. These can lead to Earthquakes. |
