Below are the ingredients of photosynthesis. Organize them to show what is used and what is produced during this process.

carbon dioxide
water
oxygen
glucose
sunlight

plusin the presence ofresult inplus

Carbon dioxide plus water in the presence of sunlight result in glucose and release oxygen into the atmosphere

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.