| 11. | Fibrous zeolite is a mineral fiber found in volcanic tuff, a porous rock formed from volcanic ash.
|
| 12. | Or a piece of porous rock.
|
| 13. | As sandstone bakes in the sun, the water evaporates and leaves behind salt crystals in the porous rock.
|
| 14. | It can also form on outcrops of porous rocks or in rock fissures where water is trapped and evaporates.
|
| 15. | :: : Yes, but it could still be water flowing out of porous rocks, as opposed to a tube.
|
| 16. | Uncountable wells that served communities were invaded by sea, sand, and earth; and aquifers were invaded through porous rock.
|
| 17. | Single point pollution itself can prove to be critical in this highly porous rock by polluting the entire aquifer.
|
| 18. | This exists in either a gaseous or liquid phase or in solution with crude oil in porous rock formations.
|
| 19. | If natural, the sound was probably caused by rising temperatures and the evaporation of dew inside the porous rock.
|
| 20. | When a pulse is applied to the ground, it expands and contracts the porous rock, essentially freeing the trapped oil.
|
