The author of Furry Friends effectively supported the claim with many things.
For example, they directly quote from sources for research, giving statistics and facts while still giving credit. They also gave personal feedback and how they think, which gives a persuasive effect. Lastly, they gave reasons for their claims and why they believe in the way they do.
Headings and subheadings in a text are used to organize the text neatly, and to have the reader better understand what you are talking about.
Answer:
The next day is rainy so Aubrey and Bridget play inside all day. Aubrey is still really sad about what happened to her mom, but is also kind of mad that her mom left her. Aubrey tells Bridget about the car crash that killed her dad and little sister, Savannah.