Will mark brainliest! if its right! scientists have discovered convection currents inside earth. explain how these convection currents move and what layer(s) they occur in 

Convection currents occur in the mantle and the outer core of the earth’s interior.   The convections in the mantle are responsible for the tectonic plates movement of the crust. The convection currents in the outer core are significant in generating the earth’s  magnetic fields.    

ANSWER:

Convection current production is a natural process that occurs in three layers of earth:

Movement of convection currents: