Consider the following statements:
Statement I:
In the context of effect of water on rocks, chalk is known as a very permeable rock whereas clay is known as quite an impermeable or least permeable rock.
Statement II:
Chalk is porous and hence can absorb water.
Statement III:
Clay is not at all porous.
Which one of the following is correct in respect of the above statements?
✅ Statement I: Correct
Chalk is permeable (water passes easily); clay is impermeable (water passes poorly). ✅ Statement II: Correct
Chalk is porous, with many small holes that hold water, making it permeable. ❌ Statement III: Incorrect
Clay is porous but with very tiny pores that restrict water flow; it is impermeable but not non-porous. Correct Answer: Only Statements I and II are correct; Statement II explains Statement I.