Resource refers to all the materials available in our environment which are technologically accessible, economically feasible and culturally sustainable and help us to satisfy our needs and wants. Resources can broadly be classified upon their availability — they are classified into renewable and non-renewable resources. They can also be classified as actual and potential on the basis of the level of development and use, on the basis of origin they can be classified as biotic and abiotic, and on the basis of their distribution, as ubiquitous and localised (private, community-owned, national and international resources). An item becomes a resource with time and developing technology. The benefits of resource utilization may include increased wealth, proper functioning of a system, or enhanced well-being. From a human perspective, a natural resource is anything obtained from the environment to satisfy human needs and wants.[1] From a broader biological or ecological perspective, a resource satisfies the needs of a living organism (see biological resource).[2]The concept of resources has been developed across many established areas of work, in economics, biology and ecology, computer science, management, and human resources for example - linked to the concepts of competition, sustainability, conservation, and stewardship. In application within human society, commercial or non-commercial factors require resource allocation through resource management.In economics a resource is defined as a service or other asset used to produce goods and services that meet human needs and wants.[3] Economics itself has been defined as the study of how society manages and allocates its scarce resources.[4] Classical economics recognizes three categories of resources, also referred to as factors of production: land, labor, and capital.[5] Land includes all natural resources and is viewed as both the site of production and the source of raw materials. Labour or human resources consists of human effort provided in the creation of products, paid in wage. Capital consists of human-made goods or means of production (machinery, buildings, and other infrastructure) used in the production of other goods and services, paid in interest. [Wikipedia]