What's the definition for internal and external coherence?

Wha is the topic discussed in “lifeboat ethics” ?

What is the effect of narrator's word choice on the tone of this passage? the words "my heart shrank within itself" create a fearful tone. the words "better-omened" set a hopeful tone. the words "wounded his fellow" develop a remorseful tone. the words "struck harsh upon my ears" suggest an irritated tone.

Why can’t the man get the third fire started?