A1Q10U1I1F4E1R1S1
20 points
AQUIFERS is validvalid
AQUIFER, a water-bearing rock formation [n]
AQUIFER, an underground reservoir of water which can be extracted for surface use, also AQUAFER [n]
AQUIFER, a water-bearing rock formation [n]
AQUIFER, an underground reservoir of water which can be extracted for surface use, also AQUAFER [n]