soluble carbonate rocks These rocks have sinkholes developed at the surface, along with caverns beneath the surface The bedrock is therefore very porous and permeable, and the sinkholes act as holes in a giant sieve to conduct water downward to storage in shallow aquifers Water there seeps rapidly into aquifers from the surface, carrying surface pollutants such as animal waste, fertilizers and pesticides with it.
(These rocks; have; sinkholes developed at the surface) (sinkholes; developed; L:at the surface) (The bedrock; is therefore; very porous and permeable) (the sinkholes; act; as holes in a giant sieve) Context(the sinkholes act,List([172, 189))):(the sinkholes; act as holes in a giant sieve to conduct downward; water)
the sinkholes act,List([172, 189))
These rocks sinkholes The bedrock the sinkholes the sinkholes
have developed is therefore act act as holes in a giant sieve to conduct downward
sinkholes developed at the surface
L:at the surface
very porous and permeable
as holes in a giant sieve
water