Most accepted determination of whether a piece of information is widely known, particularly if the 'people' concerned are your peers such as fellow students in a class.
This is A. declarative because it is simply stating a fact rather than telling someone to do something (imperative), making a dramatic exclamation, or asking a question
Because the way the earth rotates on its axis and around the sun yearly which relates to why we have season when we have spring its getting close to the sun when we have summer its closest to the sun and when we have fall were leaving the sun and when we have winter its far from the sun but throughout the year daily we still get the ray of the sun for light.
