| Answer | Crossword Clue |
|---|---|
| coalification | The process by which plant remains become coal |
| coalifications | The process by which plant remains become coal |
| sorting | the process by which sedimentary particles become separated according to some particular characteristic, as size or shape |
| succession | The process by which a plant or animal community successively gives way to another until a stable climax is reached |
| successions | The process by which a plant or animal community successively gives way to another until a stable climax is reached |
