Two aspects are usually included::
- Ecological units which are natural systems without much human interference. These include all vegetation, microorganisms, soil, rocks, atmosphere, and natural events.
- Universal natural resources and physical phenomena which lack clear-cut boundaries. These include climate, air, water, energy, radiation, electric charge, and magnetism.
In contrast to the natural environment is the built environment. There, man has changed landscapes to make urban settings and agricultural land. A simpler human environment largely replaces the complex natural environment.
Etymology[change | change source]
The roots of Natural Environment can be simply defined. 'Natural' can be classified