Question

question 41
2 pts
heat promotes recrystallization in metamorphic rocks by:
o increasing atomic vibrations
o causing minerals to melt
o stripping away valence electrons
o adding catalysts to reactions

Explanation:

Heat increases the kinetic energy of atoms. This leads to increased atomic vibrations. In metamorphic rocks, these vibrations help in the recrystallization process. Melting minerals would change the rock type (to igneous if cooled). Stripping valence electrons is not a common mechanism for recrystallization in this context. Adding catalysts is not related to the role of heat in recrystallization of metamorphic rocks.

Answer:

increasing atomic vibrations