Second Law of Thermodynamics: when energy is changed from one form to another, some useful energy is always degraded into lower quality energy (usually heat) 6.
(energy; is changed; from one form to another) (some useful energy; is; T:always; degraded; T:when energy is changed from one form to another)
energy some useful energy
is changed is
from one form to another
T:always degraded T:when energy is changed from one form to another