Lim Sook Yin is a student in class 1R of band B6D4E1. According to the document, preservation aims to maintain natural resources in their original state, while conservation is the careful use and management of natural resources to minimize loss. The document also lists several negative impacts of environmental destruction such as extinction, pollution, and health problems. It advocates reducing, reusing, and recycling resources to conserve the environment and save finite resources for the future.