Heat given off by burning coal is Potential Energy and Laser Light is Kinetic Energy.
Gravitational potential energy is the energy stored in an object relative to its position :)
The Protons determine the identity.
I believe your answer is C.
Hope this helps!
Answer:
The Earth has different compositional and mechanical layers. Compositional layers are determined by their components, while mechanical layers are determined by their physical properties. The outermost solid layer of a rocky planet or natural satellite. Chemically distinct from the underlying mantle.
