Answer:
This is from the book called a long walk to water which centers around Nya and Salva.
Step-by-step explanation:
Nya and Salva both have similar traits The main similarity between Salva and Nya is that they are both perturbed about the war that is on going or presently on around them.
I would characterize them that way because in this given situation, they are in troubled state that will affect them on the long run due to the war that was currently on.
Salva is very bothered that a plane could fly overhead and he could be hit or bombed at any given time, and Nya is disturbed that her brothers might get enlisted to fight in the war.