Provide your best answer for the following question. Give ONLY the answer, no other words or explanation.
For example:

Answer: <most likely answer, as short as possible; not a complete sentence, just the answer!>.

The question is: A basketball bounces on the gym floor nine times and finally comes to a rest. Which of these best explains why the basketball rises to a lower height each time it bounces?
Energy is transferred from potential to kinetic form each time the ball bounces, but some energy is also lost to friction with the floor