The boundary between the crust and the mantle is marked by an abrupt change in seismic velocity called the ________.
A)transition zone
B)Moho
C)low-velocity zone
D)crantle

Question

Quizplus · Accepted Answer

The boundary between the crust and the mantle is marked by an abrupt change in seismic velocity called the Moho, or Mohorovičić discontinuity. The transition zone and low-velocity zone are different parts within the mantle, and crantle is not a scientific term.

The Boundary Between the Crust and the Mantle Is Marked