The correct options that apply to the principal conservation of energy are A, C, and D.
A is correct because energy can neither be created nor destroyed. However, energy can be transfered from one location to another or be converted from one form to another. <em>Whether transferred to converted, the magnitude remains the same.</em>
C is correct because energy cannot be destroyed but can be transferred or converted. <em>Hence, if a body or a location loses temprature, then the loss is being gained by another body or location.</em>
D is also correct. A closed system is a system that does not exchange matter with its surroundings. <em>Hence, the total energy remains the same within the system. </em>
The total energy in a closed system such as Earth stays the same.
Explanation:
The simplest statement of the law of conservation of energy is that energy can neither be created nor destroyed but can be converted from one form to another.
A typical illustration of this principle of conservation of energy is a closed system of which our universe is an important example.
The total amount of energy in the universe is always a constant. Energy lost in one part must be equal to the energy gained on the other part.
