User talk:216.11.189.209

April 2020
Hello, I'm CLCStudent. I wanted to let you know that one or more of your recent contributions 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. Thanks. CLCStudent (talk) 13:49, 22 April 2020 (UTC)

June 2020
Hello, I'm Materialscientist. I wanted to let you know that I reverted one of your recent contributions —specifically this edit to Diffuse sky radiation—because it 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. Materialscientist (talk) 01:12, 1 June 2020 (UTC)
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