A natural resource is defined as a form of energy and/or matter which is essential for the functioning of organisms, populations and ecosystems. In the case of humans, a natural resource, in his words ...

Synthetic materials are made from natural resources. Synthetic materials are made by chemically changing the starting substances to create a material with different characteristics. Some examples of ...

Natural resource management is the practice of sustainably using and protecting natural resources. Natural resources include land, water, air, minerals, forests, fish, and wildlife. Managing natural ...