1.Seafloor spreading occurs when

A. two continental plate collides
B. tectonic plate sinks below another plate.
C. Plates move apart at the divergent boundary.
D. As adjacent plate rubs against another plate.


2.Which best describe the magnetic stripes found in the mid-ocean ridge?

A. Parallel and symmetrical
B. Perpendicular and symmetrical
C. Parallel and asymmetrical
D. Perpendicular and asymmetrical

3.How does magnetic stripes happen?
I. When magnetic field of the Earth decreases is range
II. When magnetic field of the Earth disappears
III. When magnetic field of the Earth reverse its polarity

A. I only
B. II only
C.Ill only​