This document discusses different types of resources. It defines a resource as something that can be used to produce wealth or benefit. Resources are categorized as economic, biological, land or natural, and human. Economic resources include goods and services used to produce products. Biological resources are substances required by living organisms. Land resources include materials found in the environment like water, air, and minerals. Human resources refer to the workforce. The document provides examples of each type and notes that resources of Bangladesh include natural gas, minerals, fertile soil, water, and its population.