It has been said humans can live on any sort of food. By definition food must mean something that provides energy, if not then it is not food.
true
true
True. Most animals have a cavity, like a stomach, where food is broken down by enzymes and acids to extract nutrients that the body can use for energy and growth.
True. Light energy is electromagnetic radiation that is invisible to the naked eye.
To most people it is true that in the biosphere there is a one way flow of energy. This is thought of in terms of the food chain.
It is true.
False
True
False
TRUE
True. Tidal energy is renewable energy source.
false; you cannot get energy from nothing, it is conserved
It is false that an electric motor converts electrical energy to potential energy.
True.
true
True
true