Author Matthew Hutson writes that getting a full night’s sleep can be challenging for teens. How does he develop this idea?

Explanation:

Hutson developed this idea after analyzing various studies of the different behaviors/actions that teens undergo prior to going to sleep. These studies have shown that the vast majority use some form of electronic device before going to sleep. It has been proven that the light that these electronic devices emit can affect the body's ability to properly fall asleep which ultimately leads to less overall sleep. The light can also damage and dry the eyes which can cause difficulty falling asleep as well.

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.

i wish you all a merry christmas!  

and or happy hanukkah

and a happy new year