Answer:
top - expository
middle - persuasive
bottom - narrative
Step-by-step explanation:
Expository text informs or explains the subject to the reader. The first excerpt informs about fossils - how they are formed and where they can be found.
Persuasive text gives the opinion of the author and attempts to influence the reader. The second text tries to persuade the readers to join a new program at the Grampians National Park.
Narrative text, as the term suggests, tells a story, which could be fact or fiction. This is what the third text does.