Answer:
The principle of conservation of matter states that any object can modify its physical and chemical state but during these changes, the mass of the substance remains the same.
After or before the change in the substance state the mass cannot be added nor can be removed.
The tectonic plate's movement of the Earth tells us about how the energy circulates and drives the matter.
The radioactivity flows the heat within the Earth's surface which drives the tectonic to move.
Step-by-step explanation: