1.The water quality of Xiaoqing River in 1990s and the beginning of this century and its causes. 2. The present situation of Xiaoqing River water quality and its causes. 3. In order to save and protec

1.The water quality of Xiaoqing River in 1990s and the beginning of this century and its causes. 2. The present situation of Xiaoqing River water quality and its causes. 3. In order to save and protect water resources The second question: "The water in Xiaoqing River has become clear, which is the result of years of efforts by all parties." Cui Yingkui said that the country, Shandong Province and Weifang City pay special attention to the pollution control of Xiaoqing River. Our province has specially promulgated the Regulations on the Prevention and Control of Water Pollution in Xiaoqing River Basin of Shandong Province, and the provincial people's congress and Weifang people's congress conduct on-the-spot investigation on the implementation of the regulations every year. The environmental awareness of enterprises has gradually improved. "The sewage treatment equipment used by enterprises in the past was not well used, and now it is running. The sense of participation and self-discipline of enterprises is very strong."

The third question: please save water, protect water resources, save water and protect water sources, starting from me.

The first question: in a word: water is beautiful and fish is fat.