The law of conservation of mass states that "Matter/substances/energy cannot be created or destroyed, it can only be transferred from one state to state.
The law of conservation of energy states that the total amount of energy remains constant in an isolated system. (Energy can neither be created or destroyed, but can be changed from one form to another.)
Answer: Hipparchus & Ptolemy believed sun and moon travel around circles with Earth in the middle (geocentric) while Plato and Aristotle believed Perfect unchanging heavens
Explanation: thus hipparchus and ptolemy violate early greek philosophy
