Question

why do the seismic waves bend as they pass through the interior of earth?
the inside of earth rotates more slowly than the outside of earth, which alters the paths of the seismic waves.
volcanically active parts of earth cause the seismic waves to bend as they pass through magma.
the seismic waves pass through different layers of earth that exist in different phases of matter.
the seismic waves move on different paths through layers of earth based on the side of the fault on which they form.
explain in 2 sentences

Explanation:

Seismic waves bend (refract) because Earth's interior has layers with varying densities and phases of matter (solid, liquid, semi-solid), which change the speed of the waves; when a wave moves from one layer to another with a different density, its direction shifts, causing the bending effect.

Answer:

The seismic waves pass through different layers of Earth that exist in different phases of matter.