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  2. Natural environment - Wikipedia

    en.wikipedia.org/wiki/Natural_environment

    Universal natural resources and physical phenomena that lack clear-cut boundaries, such as air, water and climate, as well as energy, radiation, electric charge and magnetism, not originating from civilized human actions. In contrast to the natural environment is the built environment.

  3. Nature - Wikipedia

    en.wikipedia.org/wiki/Nature

    Eugene Odum, a founder of ecology, stated: "Any unit that includes all of the organisms (ie: the "community") in a given area interacting with the physical environment so that a flow of energy leads to clearly defined trophic structure, biotic diversity, and material cycles (i.e.: exchange of materials between living and nonliving parts) within ...

  4. Ecology - Wikipedia

    en.wikipedia.org/wiki/Ecology

    Environment "includes the physical world, the social world of human relations and the built world of human creation." [ 171 ] : 62 The physical environment is external to the level of biological organization under investigation, including abiotic factors such as temperature, radiation, light, chemistry, climate and geology.

  5. Geography - Wikipedia

    en.wikipedia.org/wiki/Geography

    Physical geography examines the natural environment and how organisms, climate, soil, water, and landforms produce and interact. [25] The difference between these approaches led to the development of integrated geography , which combines physical and human geography and concerns the interactions between the environment and humans. [ 21 ]

  6. Environmental education - Wikipedia

    en.wikipedia.org/wiki/Environmental_education

    Environmental education is not restricted to in-class lesson plans. Children can learn about the environment in many ways. Experiential lessons in the school yard, field trips to national parks, after-school green clubs, and school-wide sustainability projects help make the environment an easily accessible topic.

  7. Ecosystem - Wikipedia

    en.wikipedia.org/wiki/Ecosystem

    Ecosystem classifications are specific kinds of ecological classifications that consider all four elements of the definition of ecosystems: a biotic component, an abiotic complex, the interactions between and within them, and the physical space they occupy. Biotic factors of the ecosystem are living things; such as plants, animals, and bacteria ...

  8. Environment - Wikipedia

    en.wikipedia.org/wiki/Environment

    Environment (systems), the surroundings of a physical system that may interact with the system by exchanging mass, energy, or other properties. Built environment , constructed surroundings that provide the settings for human activity, ranging from the large-scale civic surroundings to the personal places

  9. Habitat - Wikipedia

    en.wikipedia.org/wiki/Habitat

    Thus "habitat" is a species-specific term, fundamentally different from concepts such as environment or vegetation assemblages, for which the term "habitat-type" is more appropriate. [2] The physical factors may include (for example): soil, moisture, range of temperature, and light intensity.