버리다 is throwing something out. Three lines here ask 어떻게 버려요 or 어떻게 버립니까 — how am I supposed to dispose of this? — which is the practical question about sorting rules. It also covers wasting: 시간을 버리다 is throwing your time away. Keep it apart from the 버리다 that attaches to another verb and means finishing something off completely; that is a different job entirely.