ID 154364420 © Liliya623 | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
acid atom atomic carbon chemical chemistry compound corrosion education formula gall gallnut gallotannic hydrogen illustration model molecular molecule oak organic polyphenol quercitannic quercitron science sicilian spinosa structure study sumac tannate tannic tannicum tannin tannine tara vector