'Degradation of energy' means that energy:

  1. becomes spread out and less available to do useful work
  2. becomes more concentrated
  3. is destroyed
  4. is created
Answer

A) becomes spread out and less available to do useful work

Total energy is conserved, but quality falls. SLO P-11-C-19 · Understanding

Physics MCQ · More Heat Engines, Second Law and Entropy MCQs · Practise