1 Which are the author's two most likely purposes for writing this text?
A To explain how and why her attitude toward astronomy changed
B To describe the connection between history and advances in astronomy
C To inform readers of new advances in the field of astronomy
D To entertain readers with adventures of travel and astronomical discoveries
E To argue that astronomers should pay more attention to our world

rivalry

explanation:

a compare and contrast essay is a piece of formal writing in which the author focus on the similarities between two ideas, objects, places, etc., and the differences between them. there are some aspects that the author should take into account when he/she is crafting the essay. first, the author has a clear idea of the effect that he/she wants to produce on the audience (a purpose). his/her main idea should be presented in the thesis statement in a simple but effective way which gives the audience a clear idea of the content and the direction of the essay. in addition, it is also important to focus to the similarities and differences that not only are interesting and relevant to the reader but also provide a new, impressive point of view or deeper understanding of a topic.