The law of conservation of enerfy states that...?

Question

A. energy of a system is always decreasing

B. no machine is 100 percent efficient

C. energy is neither lost nor created

D. earth has limited energy resources

Answer 1

C. energy is neither lost nor created

It is one of the problems with GW, some many humans need to stay warm. And that energy is not being give back to space.

Answer 2

A. energy of a system is always decreasing. It is also true that Earth has limited energy resources.

Answer 3

Energy can never be created or destroyed, only changed from one form to another.

Answer 4

C

but... it also means B... also means D.. and to a certain extent A... but if that happens.. somewhere out there.. energy of an outside system increasing too.. so it mainains the universal energy balance

Answer 5

Environment > Conservation ???

Answer 6

either a or b...or c or d. I bet it's neither...I don't know!!!

Now I'm curious....what COULD it be? But are you asking for fun or something(meaning you already know the answer), or is it because you want to know?