Question

Explain and example of hard surface and smooth surface

Answer 1

Hard surface

Hard surface . Means an area covered in whole or in part with asphalt, concrete, interlocking brick or block, crushed or solid stone, gravel, slag, ground asphalt, wood or any non-porous material.

smooth surface

Smooth - the opposite of rough. When a surface doesn't have any holes, lumps or uneven parts we describe it as smooth. For instance, silk is a very smooth material