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The natural environment , commonly referred to simply as the environment , is all living and non-living things that occur naturally on Earth or some part of it (e.g. the natural environment in a country). This includes complete ecological units that function as natural systems without massive human intervention, including all vegetation , animals, microorganisms, rocks, atmosphere and natural phenomena that occur within their boundaries. And it includes 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 human activity.
Environmental Science & Engineering
Earth, Ocean, & Environmental Science