Nazi's family moves near a concentration camp. Youngest son befriends a jewish boy. Boy is sent to the ovens, Nazi boy goes with him and dies.
<em><u>B</u></em><em><u>. The clicking method does not work in noisy places.</u></em>
The motto means that you should reduce the trash that is causing pollution. Also, that you should follow the idea of conservation and conserve any renewable resources by recycling them.