This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Scale one to hundred no labels.svg Comparison of one unit to hundred units This is intended to be used as an imagemap for navigating two dimensional orders of magnitude such as area The squares are intended to be clicked on as follows the dark green topleft links to the next smaller order of magnitude the midgreen square links