Convection currents in the mantle cause seafloor spreading. What is the result of this plate movement? magma piles up on top of the plates involved

the plates involved are cracked on the surface

earthquakes occur along the edge of the larger plate

the plates move apart, causing the ocean floor to increase in size

the answer is a hope this

seismic wave -

an elastic wave in the earth produced by an earthquake or other means.

explanation:

true. earthquakes are felt whenever there is a slip around a fault in the rocks below the earth. this reorientation of faults create sesmic waves and is known as earthquake, the severity of which is measured in richter scale. these are more prominent in hilly regions as the rocks usually form faults to balance the pressures on it.