读印度季风图完成下列各题。

阅读理解

Alan and Cindy are in the same school. There are many school rules here. First, they can’t listen to music in the classroom or hallways. But they can listen to it outside or in the music room. Second, they can’t eat in the classroom but they can eat in the dining hall. Can they wear hats in class? No, they can’t. What other（其他的）rules do they have? They can't fight with their（他们的）classmates, either. Fights can make the teachers really unhappy…

根据短文内容，完成表格

“污水指数”是水质评价的常用指标，“污水指数”越高，说明水污染越严重，水质越差读下图，回答问题。

描述珠江口水域水污染时空分布规律并从人类活动角度阐述提高珠江入海口水质的措施。