Nature

NATURE   Nature , in the broadest sense, is the   physical   world or   universe . "Nature" can refer to the   phenomena   of the physical world, and also to life in general. The study of nature is a large, if not the only, part of   science . Although humans are part of nature, human activity is often understood as a separate category from other natural phenomena. Within the various uses of the word today, "nature" often refers to  geology  and  wildlife . Nature can refer to the general realm of living plants and animals, and in some cases to the processes associated with inanimate objects—the way that particular types of things exist and change of their own accord, such as the weather and geology of the  Earth . It is often taken to mean the " natural environment " or  wilderness —wild animals, rocks, forest, and in general those things that have not been substantially altered by human intervention, or which persist despite ...