When rock from the mantle melts, moves to the surface through the crust, and releases pent-up gases, volcanoes erupt. Extremely high temperature and pressure cause the rock to melt and become liquid rock or magma. When a large body of magma has formed, it rises thorugh the denser rock layers toward Earth's surface
Explanation:
Convection occurs in the Earth's mantle because it is the most efficient way for the Earth to cool or dispose of its deep-seated heat content. In general, heat can be transferred by conduction, radiation or convection.
A. at least I think it is
There has to be a picture or illustration attached to this question. Perhaps a picture displaying lines. You cannot find the answer with that information
Answer:
Environmental
Explanation:
if you think about it all things lead back to the Environment
