Q9Multiple choice
In a filtration plant water is filtered using layers of
- (a)sand and clay.
- (b)clay and fine gravel.
- (c)sand and fine gravel.
- (d)sand, fine gravel and medium gravel.
Show answer
(d) sand, fine gravel and medium gravel.
In a filtration plant water is filtered using layers of
(d) sand, fine gravel and medium gravel.