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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.
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 ...
Environmental Quality is a set of properties and characteristics of the environment, either generalized or local, as they impinge on human beings and other organisms. It is a measure of the condition of an environment relative to the requirements of one or more species, any human need or purpose.
Pediatric environmental health is based on the recognition that children are not “little adults.” Infants and children have unique patterns of exposure and vulnerabilities. Environmental risks of infants and children are qualitatively and quantitatively different from those of adults. Pediatric environmental health is highly interdisciplinary.
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.
Eugene Odum, a founder of ecology, stated: "Any unit that includes all of the organisms (i.e.: 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 ...
Physical geography examines the natural environment and how organisms, climate, soil, water, and landforms produce and interact. [26] 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. [ 22 ]
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