Question

there are discontinuity in the interior of the earth

Answer 1

yup this is true that there is discontinuation in interior of earth because ,, there magma inside the earth and in core part this is extremely hit and fire .. this burst and blast for every time and this blast causes earthquake too

Answer 2

earth three concentric layers. core, mantle, crust. these layers are separated by transition zones which is known as discontinuities.