Answer: The correct answer is "absorption".
Step-by-step explanation:
Kidney stones are hard and solid particles which forms in urinary tract.
The break down of the kidney stones is done by the absorption of high energy sound wave in it. Sound waves breaks the stones into simpler form. Then, it can more easily travel through urinary tract. It passes from the body.
The high energy sound wave is used to destroy cancer cells. The high intensity focused ultrasound therapy is used.
Therefore, the type of sound wave-object interaction which breaks down kidney stones and destroy cancer cells is absorption.