This document defines and categorizes different types of resources. It discusses resources as materials that produce benefits for humans and living organisms. Resources are categorized based on their origin (biotic like plants and animals, abiotic like land and water), renewability (renewable sources can replenish naturally, non-renewable cannot), ownership (individual, community, national, international), development status (potential, developed, stock, reserves), and exhaustibility (renewable or non-renewable). Sustainable development aims to meet present needs without compromising future generations' ability to meet their own needs by avoiding exhaustion of finite natural resources.