8 which of these materials is impermeable? a metal b cotton c sponge d mesh

8 which of these materials is impermeable? a metal b cotton c sponge d mesh
Answer
Brief Explanations:
Impermeable materials do not allow fluids to pass through them. Metal has a dense structure that blocks the passage of liquids and gases. Cotton, sponge, and mesh have pores or open - structures that allow fluids to pass through to some extent.
Answer:
A. Metal