Environment

Environment refers to a complex of surrounding circumstances, conditions, or influences in which a thing is situated or is developed. Environment is the external forces affecting living things, while nature is the inner force.

It may also refer to:
Natural environment, all living and non-living things that occur naturally on Earth
Built environment, manmade surroundings that provide the setting for human activity, ranging from the large-scale civic surroundings to the personal places
Environmental science, the study of the interactions among the physical, chemical and biological components of the environment
Environmentalism, a concern with the preservation of the natural environment
Social environment, the culture that an individual lives in, and the people and institutions with whom they interact