Identify the two layers of earth where seismic s waves do not travel.

The outer core and the inner core

Explanation:

S waves are the secondary seismic waves or shear waves that can travel only in the solid but cannot travel in the liquid. It is because the outer core is liquid in nature and shear strength is absent in liquid. So this wave when reaches the outer core boundary, it gets absorbed. So it cannot travel in the outer core as well as in the inner core, thereby producing a shadow zone at 103°-103°.

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).

b.

the accuracy of the data.