In the water kingdom amusement park, when two sea lions throw and catch balls on their nose, they are rewarded with fish—mainly herring and salmon—every time after their act. the sea lions have been trained to perform this behavior through

The sea lions have been trained to perform this behavior through positive reinforcement. Positive reinforcement is when a desired behavior is rewarded. In this case the behavior is catching balls on their noses and the reward is fish.

Can you put the picture?

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.