Answer:

B. S-waves cannot travel through it.

Explanation:

Scientists figured out that the outer core must be liquid because S waves do not pass through it, but P waves do. Thus by observing many seismic waves from many earthquakes all over the world, scientists have been able to work out the density of different parts of the Earth (i.e. the core, mantle, and crust).

Answer:

a. po yung answer

Explanation:

pa branliest po