Answer:
new ocean crust forms at ocean ridges which is a Tectonic plate boundary.
Explanation:
At mid-ocean ridge magma arrives out of the crack, cools and solidifies and builds the new oceanic crust, fresh oceanic crust pushes the old oceanic crust into a ditch in a range known as a subduction zone.
Effects of tectonic plates are following:
- Volcano
- Island
- Mountains
- Earthquake
