| A | B |
|---|
| sediment | bits of weathered rocks, and pieces of dead plants and animals |
| sedimentary rock | rock formed when sediments were pressed and cemented together |
| fossil | the remains or traces of an organism that lived long ago |
| fossil fuel | a fuel that formed from the decayed remains of ancient plants and animals |
| renewable resource | a resource that can be replaced in a fairly short amount of time |
| nonrenewable resource | a resource that nature cannot replace quickly enough to meet people's needs |
| weathering | breaking rock down into smaller and smaller pieces; the beginning of the erosion process |
| erosion | the movement of weathered rock and soil by wind, water and ice |
| deposition | the process by which weathered rock and soil are dropped in a new location |
| lithification | the process by which small rocks or sediment is cemented together from minerals |
