Dr. Soukaina Hassan Hashem and Dr. Shaima Hameed Shaker received, thanks and appreciation letter from the President of the University Dr. Amin Douai Thamer for the efforts made by them in participating in the success of the Fourth Scientific Conference on Environment and Sustainable Development organized by the Department in cooperation with the Arab Union for Sustainable Development and the Environment in the Arab Republic of Egypt for the period 24-28 / 11/2018, hoping them to continue to do more. To our beloved university.