| Picture | Answer | % Correct |
|---|---|---|
![]() | Coal | 89%
|
![]() | Limestone | 67%
|
![]() | Sandstone | 67%
|
![]() | Shale | 67%
|
![]() | Conglomerate | 56%
|
![]() | Gypsum | 56%
|
![]() | Chert | 44%
|
![]() | Siltstone | 44%
|
![]() | Dolomite | 22%
|
![]() | Travertine | 11%
|