Question

Explain the Tectonic forces.

Answer 1

Tectonic forces are those originating beneath the surface that alter the surface configuration of the earth as a result of tectonic (lithospheric) plate movement. 
  Tectonics (from the Vulgar Latin tectonics, meaning "building") is a field of study within geology concerned generally with the structures within the lithosphere of the Earth (or other planets) and particularly with the forces and movements that have operated in a region to create these structures. 
 
 

Answer 2

the outermost layer of the Earth is called plates. there many plates small and large they keep pushing each other with some for that force is known as tectonic forces..
which also causes earthquake and tsunami..