Answer:
hello your question is incomplete attached below is the complete question
answer : Conduction, Lattice vibration ( B )
Explanation:
The thermal transfer of energy occurs in a solid like a copper rod following two process therefore the second process and method are
Lattice vibration and conduction
Lattice vibration is the movement/oscillation of atoms in a solid and this is caused by the change/increase in temperature applied to the solid and these vibrations will lead to the thermal transfer of energy via conduction since the atoms are bounded together .
