Welcome to the Esri Community, @kurdishbrwar ! It's great to have you here with us! Sounds like your test went well 🙂 Excited to hear more about our GIS experiences at Zakho University. You might want to check out our Water Resources place for more GIS knowledge related to hydrology. https://community.esri.com/t5/water-resources/ct-p/water-resources
As you explore around, we invite you to check out the Community Basic resources where you can get tips on asking good questions, finding solutions, sharing ideas and other tools to get you started on your journey. If you have any questions, let us know. Excited to see you around the community!
Esri Community Strategist