| Answer | Crossword Clue |
|---|---|
| TIER | Stratum in a stadium |
| TIER | Stadium stratum |
| pockets | A cavity in a rock or stratum filled with ore or other distinctive component |
| underclasses | The lowest social stratum in a country or community, consisting of the poor and unemployed |
| underclass | The lowest social stratum in a country or community, consisting of the poor and unemployed |
| paleosols | A stratum or soil horizon that was formed as a soil in a past geological period |
