Aduration or period in which something happens is known as
a. time
b. relative age
c. geologic time
d. absolute time

A duration or period in which something happens is known as time. The answer is letter A. It is used as a verb. For example. When the bombs fell out from the sky, we timed ourselves for our death.

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.