This document discusses the management of natural resources. It defines natural resources as materials that come from the Earth and are useful for human survival. Natural resources are categorized as either renewable or non-renewable. Non-renewable resources like coal and oil are found underground and there is only a finite amount. Renewable resources like trees, plants, animals, air, sunlight, and water can regenerate if properly managed. The document emphasizes the importance of managing natural resources sustainably so that all people can benefit from their development and they are not exploited for only short-term gains.