Don't quote me, and if this is wrong please don't be mad lol. I believe the answer is depression.
Answer:
It should be about 1-2 hours earlier than adults. Because their body is still growing. A teen has to sleep at least 9 hours, and a adult only have to sleep 7-9 hours.
Answer: C. to move around from one setting to another.
Explanation: When writting nonfiction, the author have to be well plotted such that such makes and give his writing more freedom in moving around form one setting to another.
Scarring and possible nerve damage
Answer 3 would probably be right