User talk:81.107.75.173

January 2020
Hello, I'm Serols. I wanted to let you know that I reverted one of your recent contributions —specifically this edit to Continental crust—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. Serols (talk) 18:39, 30 January 2020 (UTC)
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February 2020
Please do not introduce incorrect information into articles, as you did to Softwood. Your edits could be interpreted as vandalism and have been reverted. If you believe the information you added was correct, please cite references or sources or discuss the changes on the article's talk page before making them again. If you would like to experiment, use the sandbox. Thank you. Nyook  ✉ 08:53, 16 February 2020 (UTC)
 * If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.