User talk:Utkarshanayak000

March 2017
Hello, I'm NeilN. I noticed that you made a change to an article, History of gravitational theory, but you didn't provide a reliable source. It's been removed and archived in the page history for now, but if you'd like to include a citation and re-add it, please do so! If you need guidance on referencing, please see the referencing for beginners tutorial, or if you think I made a mistake, you can leave me a message on my talk page. Thank you. Neil N  talk to me 20:40, 24 March 2017 (UTC)

April 2017
Hello, I'm TheFrog001. I noticed that you made a change to an article, Hydrogen chloride, but you didn't provide a source. I’ve removed it for now, but if you’d like to include a citation to a reliable source and re-add it, please do so! If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. TheFrog001 (talk) 18:11, 1 April 2017 (UTC)