Cover of Trace Tracker

Trace Tracker

For the Trails at Allegheny Portage Railroad National Historical Site

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2019

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978-0-259-73593-9

0-259-73593-0

Annotation

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. A rotting stump is home to many small creatures who in turn hasten the process of decay. Decomposers such as earthworms feed on dead organic matter and break down the debris into substances te-usable by new plants. Nature's efficient and economical processes continuously recycle important nutrients and are self-sustaining. On the other hand, man-made Operations (such as this railroad) need continuous maintenance and a steady input of energy.

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