What can be said about prokaryotes and eukaroytes? a. both of these cell types contain genetic material. b. prokaryotes always have a nucleus, but eukaryotes don't. c. prokaryotes don't grow or respond to their environment, but eukaryotes do. d. both of these cell types contain a nucleus.

I think the answer would be A "both contain genetic material." 
all the others options are false.

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.