Answer:
Deciding to study is an internal conflict because it is an inner struggle also known as man vs self. Another example of an internal conflict would be an emotional problem like anxiety or difficult decision making. External conflict is a struggle outside of yourself, such as, someone bullying you, or a snake in the wild. (man vs nature)
Answer:
I would say that firefighters and police officers are called heroes because they would do anything to help or save a person's life. They sacrifice their lifes for other people. Sadly, while they do some of these sacrifizes, they may end up hurting themselves or there life's ending.
The Graveyard Book is an interesting story that reflects on themes of family and fate. There are quite a few other interesting themes this novel addresses, but the most crucial theme of the story seems to be the role the community plays in raising a child. This ties in with the theme of fate versus free will.