Which statement indicates what the fossil record suggests about evolution on Earth?
Humans have only recently existed on Earth.
Organisms originally lived only on land.
Life on Earth started when water formed on Earth.
Multicellular life evolved before complex single-
celled life.

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.