Answer: I don't know this one but I'm just came here for points
Explanation:
I believe the answer to your question is “Lithosphere plate boundaries”
The planet Earth is covered by a layer formed by land and rocks called the earth's crust or lithosphere. This crust is not smooth and uniform, but rather irregular and composed of tectonic plates, also called lithosphere plates. These plates are not fixed as they are under the magma (high temperature molten rock).
Hope this helps!:)
Answer - There are three ways an object can accelerate: a change in velocity, a change in direction, or a change in both velocity and direction.