2023 · Q36
Which one of the following is a permeable rock that allows water to pass through it?
indian-world-geographygeomorphology
- AGranite
- BLimestone
- CQuartzite
- DSill
Explanation
Limestone is permeable: slightly acidic groundwater dissolves it along joints and bedding planes, creating karst landscapes with caves and underground drainage. Granite and quartzite are dense crystalline rocks that are effectively impermeable, and a sill is a solidified sheet of igneous rock, also impermeable. Hence limestone is the permeable rock.