Answer:
Maggie's injuries were caused by the fire in their house.
Explanation:
In the book "Everyday use" the author Alice Walker tells the story Maggie along with her mother and older sister, Maggie, who was a little girl when they used to live in another house, was injured by a fire in some parts of her body,luckily her mother was able to take her out but she was affected by the scars and burn marks since they made them timid and nervous.
