Energy is necessary for things to happen
reneawable energy means the energy which can not be reneawed when they become extint
It means to convert one type of energy into another type of energy.
That's means energy. No, 'efficient' means getting the best out of the energy that you are using. Energy in itself can be used efficiently or inefficiently.
What S means to little food energy
It means that without energy, nothing would move.
It means that energy can neither be created nor destroyed.
It means that energy can neither be created nor destroyed.
It means planted energy
The word that means without any energy is "listless."
"Vigor" is a word that means having a lot of energy or enthusiasm.
reducing energy use
It means that we would get less energy out of that source than we put into it, so the net result is wasted energy.