Hello. You did not enter the text to which this question refers which makes it impossible for it to be answered accurately. However, I will try to help you in the best possible way.
Changes can only be described after reading the text. In this case, after reading the text, you must pay attention to the physical changes that the scenario, to which Hannah is inserted, presents and how these changes cause both physical and interior changes in Hannah. This shows an example of how the environment affects a person and, in this case, a character, modifying and adapting it in relation to everything around him.