S1I1A1L1S1
5 points
SIALS is validvalid
SIAL, a type of rock formation [n]
SIAL, the upper layer of the continental crust, so called because it is rich in silica and aluminum oxide [n]
SIAL, a type of rock formation [n]
SIAL, the upper layer of the continental crust, so called because it is rich in silica and aluminum oxide [n]