Ground water, which is found in aquifers below the surface of the Earth, is one of the Nation's most important natural resources.
(Ground water; is found; L:in aquifers below the surface of the Earth) (Ground water, which is found in aquifers below the surface of the Earth; is; one of the Nation's most important natural resources)
Ground water Ground water, which is found in aquifers below the surface of the Earth
is found is
L:in aquifers below the surface of the Earth
one of the Nation's most important natural resources