This is a list found in the back of a book that gives definitions of unusual or hard words found in the text.

glossary

Explanation:

Whenever you look in the back of a book, you will find a glossary. It will say so on the top of the page and it will give you definitions for each of the terms.

the answer is emerged from.

orpheus descended to hades, the world of the death to rescue eurydice. no mortal had ever done this before him, he survived because he was protected by the gods. the word "underworld" gives us a clue, he emerged from it like a whale emerges form sea for exemple.

that they just take and use up resources all the time

explanation :

quizlet