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Angle of Repose: the steepest angle that slope, rock, or detritus material settles into without toppling.Builders of flood-prone roads and sliding hillside homes in California ignore the angle of repose so often that it could be renamed the angle of depose.It would be interesting to see a study on how many researchers feel separated from Ammonia: a gaseous compound of nitrogen and hydrogen (NH3) formed as a byproduct when bacteria decompose substances high in nitrogen.

So all the old material will be left here for archival purposes, with comments turned off.

The glossary that follows assumes a definition of ecology--the study of interactions between organisms and their environment--much wider than what fits under the field's habitual statistical persona.

Ecofeminism and ecopsychology are mentioned, for example, as are terms from organic gardening and permaculture.

Most of it is generated by sulfur dioxide and nitrogen dioxide (air pollution). Results include fish and plant deaths, corrosion, groundwater pollution, and soil erosion. Actinomycetes: formerly classified as fungi because of their filaments, the actinomycetales include many types of soil bacteria.

They produce antibiotics, enzymes, and vitamins, although a few are harmful to humans.

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