Resources are classified based on origin into natural resources and human-made resources. Natural resources are obtained directly from nature, such as air, water, soil, minerals, and forests. These exist without human effort and form the foundation of life on Earth. Human-made resources are created by people using natural resources and technology, such as roads, buildings, machines, and tools. Both types of resources are interconnected because human-made resources depend on natural inputs. Understanding this classification helps in recognizing the importance of nature in supporting human activities and development.