User talk:166.181.87.68

May 2024
Hello, I'm Ingenuity. I wanted to let you know that one or more of your recent contributions&#32;to Water fuel cell have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the Teahouse or the Help desk. Thanks. — Ingenuity (talk • contribs) 17:15, 22 May 2024 (UTC)

Please do not add or change content, as you did at Water fuel cell, without citing a reliable source. Please review the guidelines at Citing sources and take this opportunity to add references to the article. Thank you. — Ingenuity (talk • contribs) 17:19, 22 May 2024 (UTC)