Final answer:
In the book Resistance, Esther used Chaya's hair as a tourniquet.
Step-by-step explanation:
In the book Resistance, Esther used Chaya's own hair as a tourniquet. When Chaya was injured, Esther had to think quickly and use the resources she had available to help stop the bleeding. In this case, she used Chaya's hair to tie it tightly around the wound to restrict blood flow.