The boundary separating the Earth's crust from the underlying mantle is known as the:

💡 Solution & Explanation

The Mohorovičić discontinuity serves as the distinct seismic boundary separating the solid crust of the Earth from the underlying mantle. Alternative layers like the Gutenberg discontinuity mark deeper transitions between the mantle and the core. Seismologists identified this boundary by analyzing abrupt changes in earthquake wave velocities.