Question

what is the mohorovicic discontinuity?
a. the line where the earth's layers go from solid to liquid
b. the boundary between the crust and the mantle
c. the refraction of seismic waves
d. the measurement of the speed of seismic waves

Answer 1

The Mohorovičić discontinuity, often referred to as the "Moho," is best described as:

**b. the boundary between the crust and the mantle.**

This boundary marks the transition between the Earth's crust, which is primarily composed of lighter, silicic rocks, and the denser mantle beneath it.