User talk:Jonny1232123221

November 2019
Hello, I'm CLCStudent. I wanted to let you know that one or more of your recent contributions to Thermodynamics 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 help desk. Thanks. CLCStudent (talk) 16:01, 11 November 2019 (UTC)

Please refrain from making unconstructive edits to Wikipedia, as you did at Air pollution. Your edits appear to constitute vandalism and have been reverted. If you would like to experiment, please use the sandbox. Repeated vandalism may result in the loss of editing privileges. Thank you. CLCStudent (talk) 16:05, 11 November 2019 (UTC)