What do we learn about the book from the text?

(单选题)What will happen by 2100, according to a new study? (单选题)（ ） (单选题)It can be known from the text that ______ can be responsible (单选题)According to the Paragraph 4, which way may not be used to p (单选题)The underlined word toxic can be replaced by ______. (单选题)The function of paragraph two can be a(n) ______. (单选题)From the first paragraph, we know that ______. (单选题)What is the author’s attitude to China’s population census? (单选题)What does the word “fraught” possibly mean? (单选题)What kind of data is not covered in the census?