Question

Which of the following is true about impervious building materials?
a.
Impervious surfaces prevent pollutants from entering the water supply.
b.
Vegetation and gravel are common impervious materials.
c.
Having fewer impervious surfaces improves water drainage.
d.
All of the above


Please select the best answer from the choices provided

A
B
C
D

Answer 1

C

Having fewer impervious surfaces (more permeable ground like soil and vegetation) improves infiltration and reduces runoff, improving drainage.