A lighthouse keeper stands at the top of her 175ft tall lighthouse and spots a fishing
boat in the distance at sea. She estimates
the boat is about 2640ft off shore. What is
the measure of the angle of depression
from the keeper to the fishing boat?

Assuming this is a question on a test just name a restaurant by your house and the state you live in, its not too difficult : )

Answer the collision of tectonic plates;

It is useful for historians to write narratives so that history can be passed on from their point of view.  think about a story being told in third person, then think about it again being told in first person, by someone who actually experienced the event.