A resource is any physical or virtual entity of limited availability, or anything used to help one earn a living. In most cases, commercial or even ethic factors require resource allocation through resource management. As resources are very useful, we attach some information value to them. Resources help to produce goods so they have economic value.
Natural resources (economically referred to as land or raw materials) occur naturally within environments that exist relatively undisturbed by mankind, in a natural form. A natural resource is often characterized by amounts of biodiversity existent in various ecosystems. Natural resources like forests, mountains etc. are considered beautiful so they have aesthetic value. Gifts of nature such as water also have a legal value because it is our right to consume them. On the other hand, resources have an ethical value as well because it is our moral duty to protect and conserve them for the future generations.