the process by which metamorphic rock changes to igneous rock begins with melting deposition weathering…

Brief Explanations:

Igneous rocks form from the cooling and solidification of magma or lava. Metamorphic rock must first melt to become magma, which then cools to form igneous rock. Deposition, weathering, and erosion are related to sedimentary - rock formation processes rather than the transformation from metamorphic to igneous rock.

Answer:

melting