Como se define la unidad astronómica, el año luz y el parasec?

The anwser is the universe

Need the answers if its a multiple choice question

Ilike to eat pears ya nah wha im sayin b? shout out to all my pears b.

Ibelieve the answer is relative humidity  because it makes more sense that way. solar flares usually occur in space it doesn't affect the earth, well it could but it wont make a significant damage.  latitude is land it doesnt do anything. prevailing winds, i dont know the correct meaning for this but i doubt that affects the land so it has to be relative humidity.