# Earth Knowledge

**Category:** Research and Development in Nanotechnology
**Location:** Tucson, AZ 85775
**Phone:** (520) 829-7157
**Website:** http://earthknowledge.net

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*Source: [Maven Business Compendium](https://mavenmvp.com/compendium/listing/earth-knowledge-tucson-az-5d7e38) - Source of Truth.*