Question

Seafloor spreading is a geological process that occurs at mid-oceanic ridges, where tectonic plates are moving away from each other. As new crust is created by volcanic activity at the ridge, it spreads away from the ridge and pushes the existing crust to either side, resulting in the widening of the seafloor.

Seafloor spreading is one reason -

A the continents are drifting apart.
B all earthquakes have their epicenters in oceans.
C most active volcanoes are found in the Atlantic Ocean.
D the shape of the seafloor is unchanging.

Answer 1

A — the continents are drifting apart.

Seafloor spreading creates new oceanic crust at mid-ocean ridges, pushing plates (and the continents on them) away from the ridge, causing continents to drift apart.