Nuclear Fusion is the answer to the question who posted.
Answer:
Plates at our planet's surface move because of the intense heat in the Earth's core
Explanation:
Hopefully this helps, I believe in you! ^^
Physical changes are changes affecting the form of a chemical substance, but not its chemical composition. Physical changes are used to separate mixtures into their component compounds, but can not usually be used to separate compounds into chemical elements or simpler compounds.
Ex: cutting a paper, gaining weight, cutting hair