Jan noticed that when she put a tomato in water, it sank. when she put an apple in water, it floated. why did the tomato sink while the apple floated?

The tomato had a higher density than the water. The apple had a lower density than the water.

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.