Can you create or destroy energy? If yes why, if no why?

The law of conservation of energy states that energy can neither be created nor destroyed.

It can only be converted from one form of energy to another.

I hope this helps! ❤️

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .